Chapter 27
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cliffc999
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Earth-MCU
Insight Day: D Minus Zero
"Fire now." Captain America's voice came hoarsely through the headset.
"Steve! No!" Courtney cried into her microphone. Next to her, Sam Wilson placed a steadying hand on her shoulder.
"Do it!" Cap ordered. "Do it now!"
"Firing." Maria Hill acknowledged regretfully from her station in Flight Ops Control.
The three Insight Helicarriers each locked in on the other two with their main railguns and went to continuous rapid fire. The reinforced hulls on the three ultra-sophisticated engines of death had been built to withstand almost anything, but against their own orbital artillery at point blank range their armor was as much use as balsa wood versus a bullet. With great gouts of flame spurting from every seam the hovering vessels groaned, shuddered, and began to helplessly descend towards the ground. The comms cut out with a horrible flare of static.
"What a waste." Secretary Pierce whispered sadly, as he stood watching the destruction of Project Insight through the paranoramic windows of the conference room adjacent to his office. Scattered around his feet were the unconscious bodies of the HYDRA soldiers that the infiltrating Black Widow and Invisigal had subdued to rescue the World Security Council, and behind him stood Nick Fury with a levelled pistol.
"You're goddamn right it is." Invisigal spat hatefully at the arch-traitor and leader of HYDRA. "But we're really not talking about the same thing."
"Time to go, Mister Secretary." Natasha commanded him with a voice of ice as she stepped up to take his arm. "You're flying out with us."
"To be the guest of honor at the trial of the century?" Pierce smiled down at her slightly, his dignitas still wrapped around him like an invisible shield. "Thank you for the offer, but I'm afraid I must decline." And suddenly his face drew up tightly in a grimace, his left arm clutched tightly to his side, and he collapsed to the ground.
"Damn it!" Sam swore, running over to the fallen man and swiftly examining him. "Did he have a heart condition?"
"Yes." Nick answered him tonelessly. "He had a pacemaker put in five years ago."
"Well it must have had a manual override." Sam said grimly as he finished taking Pierce's pulse. "He just put his own heart into ventricular fibrillation. There's nothing I can do for him."
Pierce smiled thinly up at the surrounding heroes. "Hail… Hydra…" he silently mouthed, and died.
Fury exhaled heavily as he turned to face the stunned World Security Council members who'd silently been watching the entire tableau. "This whole place is about to come down. The escape elevator is in the Secretary's office, use it and get the hell to the basement shelter and then out the evac tunnel. We'll fly out."
"Are you staying dead, Nicholas?" Councilor Singh asked him. "Or can we report having seen you here?"
"Stay quiet for now, if you would." Fury acknowledged the gesture. "Officially Hill and Rogers had command of this op. We thought HYDRA was gone once before and obviously we were wrong. Might be useful for us to keep a hole card out this time."
"I understand. Thank you for saving us." the Councilor nodded back to Fury and his team. "All of us… from the consequences of our own mistake." He looked back out the window at the falling Helicarriers and then led his fellow Councilors into Pierce's office nearby.
"Let's go." Natasha said, and the four of them trotted back out to the helipad and the sleek black machine waiting for them there. Fury took the controls and Natasha the copilot's seat, and they lifted off into the air.
Courtney stared out the side window, white-faced, at the nearest of the three crashing Helicarriers – the one that Captain America was still on, facing off against the Winter Soldier. The helicopter lifted off just in time to avoid being caught as the edge of the Helicarrier's flight deck brushed against the side of the Triskelion and the skyscraper began to shudder and collapse. Undeterred, the Helicarrier continued its slow, tragic descent over the Potomac.
"Can we land on it? Get him off before it crashes?" Courtney begged.
"No." Sam shook his head, "Its descent is too erratic and half the flight deck is on fire. Plus he's on the bottom of the damned thing, in the targeting blister."
"Steve can do a five-thousand-foot fall into water without a parachute and swim it off." Natasha insisted. "All he has to do is get out while it's still over the river and he'll be fine."
"Then why hasn't he?!?" Courtney fretted.
Steve's voice came back into their headsets, full of static, as Natasha managed to partially restore radio contact.
"Your name… is James Buchanan Barnes…" Steve's voice came painedly over the headset, followed by the thunderous clang of a metal arm punching against a vibranium shield..
"Is that idiot still trying to talk him down?" Sam swore viciously.
"I'm not gonna fight you. You're my friend." Steve continued, as a grunt of rage and another furious punch was heard faintly in the background.
The sounds of combat continued, as the Winter Soldier furiously pressed the attacks. Steve grunted in pain several times, but appeared to be successfully blocking or dodging most of his opponent's blows.
"But I'm not just gonna lie down and let you kill me either. I can't do that." Steve continued, as Courtney sniffled.
"Shut up!" the Soldier's voice came faintly through the microphone as he continued attacking.
"I met a girl, you see." Steve explained. "She's wonderful. Feisty on the outside, sweet on the inside… everything you'd ever hoped I'd find…"
"I don't CARE!" the Soldier shouted.
"I can't wait to introduce you to her." Steve said. "You'll get along great, I know you will. But you gotta come with me, Buck. Just stop fighting and let me get us out of here."
"You… don't know me!" the Soldier swore hoarsely. "You're! My! Mission!"
"We're running out of time, Buck." Steve pleaded. "Her name's Courtney. I can't abandon her. But I can't abandon you either. Please don't make me choose between you two… because I don't know how I can."
Several more frantic clangs of the shield sounded as the Soldier's voice faded away to incoherent grunts of pain.
"'Cause she's the woman I love, and you're my brother. And I want us all to be together… till the end of the line."
Silence fell for one awful moment before the armored-glass viewing blister on the bottom of the Helicarrier was smashed open by a huge chunk of debris falling through it from the inside. The radio cut out again with a horrible finality, and Courtney sobbed.
"I see him! One o'clock!" Sam suddenly pointed between the pilots' seats and out the windscreen, where two barely visible man-sized silhouettes were falling towards the Potomac from the torn-open blister. One of them had a glint of metal coming from their arm, and the other was clearly dressed in a bright red, white, and blue costume.
"I'm going after him!" Fury put the helicopter into a steep dive, and Sam fought his way back into the helicopter's passenger compartment and over to the side door as they levelled out.
"Keep a tight hold on that strap!" he ordered Courtney, and then furiously pulled on the door handle and slid it back. "Right door open!" he called out, and then immediately began hyperventilating, charging himself with oxygen.
"Going into a hover… now!" Natasha called back from the pilot's compartment, and the helicopter came to a standstill barely six feet over the river.
"Diver in the water!" Sam acknowledged as he leapt out the door, followed almost immediately by Courtney. The two of them arced down into the depths of the Potomac where Cap had just fallen and swam down towards the struggling figure in the flag costume. Off to their side, just at the edge of visibility, another swimmer saw them coming and turned away.
The two divers each grabbed on to one side of the struggling Cap and managed to, with some assistance from their rescue, use their combined muscle power to haul him back up to the surface.
"Ugh, I still can't believe how heavy he is!" Courtney complained as everybody's head broke the water.
"He had a big breakfast." Sam snarked as the three of them dog-paddled towards the nearest shore. "And what the hell were you thinking, jumping in after me? I'm the one with pararescue training and you're not even a lifeguard! I could have ended up having to try and rescue two drowning people!" he insisted.
"And I'm the one with the bionic lungs, remember?" Courtney called back heatedly. "Maybe I would have ended up having to save you from drowning!"
"It's nice to see… you're all getting along… so well." Cap joked weakly as they helped the battered and bleeding hero up onto the muddy shore.
"Jesus, man, you've got at least three bullet holes in you!" Sam swore as he examined the wounded Cap. "Did you ever consider ducking?"
"And I thought you had a problem with getting stabbed!" Courtney lovingly fussed over Steve, before a motion out of the corner of her eye made her look up. "Guys!" Courtney called out alarmedly. Both men turned and then tensed at the sight of the cyborg assassin standing maybe fifty feet away from them down the riverbank, also bedraggled and soaking from where he'd just swam up out of the river.
"Bucky?" Steve asked plaintively. "Are you okay?"
"… Steve." Bucky nodded slowly back at him, as the other two gasped. "I… don't know." he continued faintly. "I know you… but I don't know how I know you."
"HYDRA messed with your head. Took away your memories." Steve pleaded. "Come with us. We can help you."
"It's not safe here." Bucky shook his head as he stepped away. "I have to go."
"We won't force you to do anything." Courtney interrupted Steve. "But please come back when you can, Bucky. Steve misses you so much."
"You're his girl?" Bucky looked at her curiously.
"Yes." Courtney smiled tearfully. "I'm Courtney. It's nice to meet you."
Bucky fought for words that he couldn't find and then nodded somberly to her. He turned swiftly and disappeared into the nearby underbrush.
"I'll be goddamned, you were right." Sam stared after him wonderingly. "He was still in there, even if he's still pretty messed up."
"Told you so." Steve grunted, and then leaned back painedly and gasped.
"Yeah, now lie still." Sam turned back to Steve and then looked up again as the helicopter landed nearby. "He's stable for right now, but he's not going much further without medical attention!" Sam called out.
"Hill's staying at what's left of the Triskelion to coordinate search-and-rescue!" Fury yelled down to them from the pilot's seat. "We already contacted her, she's finding someone to swipe a vehicle and give you a medevac. Natasha, stay with them. I've got to get out of here before someone else comes along to notice I'm still alive. Besides, the chopper can't lift all of us."
"I'm on it." Natasha acknowledged as she jumped down out of the helicopter with the first-aid kit. "Here, let's at least get some dressings on him."
"Yeah." Sam said as Fury nodded good-bye to everyone and took off again. The three of them finished giving Steve what first aid they could and then started helping him stagger up the embankment toward the nearby frontage road.
"Van coming." Sam said warily as a nondescript service utility van with no insignia made an appearance after several minutes. Its headlights flashed at them once, then thrice.
"It's okay, I know the driver." Natasha said, and unhesitatingly led the others towards the van. The vehicle came to a stop and the driver, an athletic young blonde woman with a bloody bandage tied around one arm, leapt out.
"How bad is it?" she greeted them worriedly.
"Bad enough I'm thinking hospital rather than safe house, but not bad enough we need to run all the red lights." Sam answered her.
"This is Sam and she's Courtney." Natasha introduced them. "Sam's the medic, so right now we follow his lead."
"Straight to the nearest ER, got it." the blonde agent acknowledged. "Okay, I swiped a trauma kit if you need more supplies, it's in the back of the van. Now everybody load up, we need to get out of here before half the alphabet agencies in Washington start setting up a containment perimeter and then let people leave only in the back of a detention vehicle."
Sam and Natasha helped the wounded Steve into the back compartment and got to work on him with the trauma kit, leaving Courtney sitting nervously in the passenger seat. After spending several blocks driving quickly yet cautiously to escape the immediate perimeter, the agent relaxed enough to turn and speak to her passenger.
"So you're the one." she greeted Courtney. "The girl from another universe."
Courtney looked knowingly back at the woman questioning her. "Did you know Steve well?" she asked with just a touch of frost.
"We met at work a few times, but no, we weren't close." she acknowledged Courtney respectfully. "I was originally supposed to be heading up a new special security detail for him, but that got changed after his wormhole trip. As is, we were just office acquaintances."
"I'm imagining Steve was a very popular sight around the building." Courtney replied suspiciously.
"Oh he was." the woman acknowledged. "But I wasn't kidding myself that I had any… claim on part of his life." She trailed off embarrassedly. "Sorry, I'm trying not to make this awkward but in my case I literally grew up on stories of him from when I was a little girl, so it was never not going to be awkward actually meeting him at SHIELD. Or meeting anyone else who was close to him."
"Do most little girls in this world grow up on Captain America fairy tales?" Courtney inquired tentatively.
The agent actually chuckled at that. "Do you know what the difference between a fairy tale and a war story is?"
"One of them starts out with 'Once upon a time' and the other one starts out with 'Now this is no shit.'" Sam called amusedly from the back compartment.
"Exactly." the young woman smiled. "And in my case I got all the war stories direct from the source, my Aunt Peggy."
"Peggy-?" Courtney blinked, before her voice took on a knowing tone. "Ohhhhh. You're an Agent Carter."
"Guilty." she nodded back to Courtney. "So I was really just… hoping that you were a nice person." She looked out the windshield pensively. "Aunt Peggy said that Captain Rogers was always the one looking after everyone else, but that he made it almost impossible to properly look after him." The van came to a halt at a red light and she turned to look at Courtney imploringly. "So I know it's not my place to talk but please take good care of him, all right? Because he'll never do enough of that for himself."
"I'm not that bad." Came a weak protest from in back.
"Yes you are." Sam and Natasha both replied immediately.
Courtney relaxed and smiled warmly at the woman alongside her. "I will. I promise. And my friends call me Courtney."
"I'm Sharon." she replied, and they shook hands – and then Sharon winced as she put exertion on her wounded arm.
"I'm sorry!" Courtney drew her hand back. "Sam, you need to look at Sharon's arm once you've got a moment."
"I'm fine, it's just a knife slash." Sharon protested ."Superficial, barely broke the skin."
"What happened?" Courtney asked her.
"I was in Launch Control trying to stop the Helicarriers from even getting out of the bay." Sharon sighed. "It was a standoff in there between me and a few other loyalists and several of the STRIKE goons. Rumlow had his pistol to the head of one of the techs, but I had the drop on Rumlow … or I thought I did, at any rate. As soon as I blinked he pulled a sleight-of-hand trick with his holdout knife and suddenly I don't have a pistol anymore and he's using my weapon to shoot up the room. And then he made it to the launch panel and hit the controls despite everything I could throw at him." She slumped dejectedly. "I'm sorry I screwed it all up. If I'd done my job right then Captain Rogers wouldn't have needed to get himself shot up there at all."
"How long did you delay the launch?" Natasha asked matter-of-factly.
"Maybe sixty seconds, ninety at the outside." Sharon shook her head. "Barely any time at all."
"Sixty seconds was the difference between me and Sam getting onto the Helicarriers in the first place and them already being well into the air before we'd even made it back outside the building." Steve assured her. "What you did was as much part of saving everybody's lives as what we did. You did good, Sharon. Peggy would be proud of you."
Sharon blushed to the tips of her hair and furiously concentrated on the drive ahead, unable to answer. "We're almost at the hospital. What story am I telling?" she eventually asked.
"Drop me off a block away." Natasha ordered. "Sam, Courtney, you're just passers-by who found Steve at the side of the river. Sharon, you swiped the van from the Triskelion motor pool on your own initiative and went looking for crash survivors along the shore. I was never here."
"Got it." Sharon acknowledged, and stopped the van to let Natasha get out and disappear before resuming motion. "All right, we'll be at the ER in a couple of minutes. Everybody clear on what to say?"
"Natasha made it kinda easy to follow, yeah." Steve acknowledged with a grunt.
Sam forced Steve to lie down again, and Courtney turned to Sharon. "Are you going to vanish too once we get there?" she asked.
"I'm sure Natasha will be back in touch soon, she just doesn't want to get pinned down anywhere until she's had a chance to scope out the immediate reactions to the event and set up some fallback positions." Sharon assured her. "As for me, I might not have a job anymore but I still have friends to take care of… several of whom are riding in this van right now. So I'll stick with you guys at least until she turns up again to help brainstorm next moves."
"Glad to hear it." Courtney said. "Because honestly, I'm kinda out of my depth with all these spy games. I just drove down overnight from New York once the whole 'Captain America Fugitive' thing went public, and even then I couldn't actually find anyone until the whole mess on the causeway gave me a breaking news spot to go follow."
"If you're someone that Romanov and Hill would take along for the Triskelion raid at all, then you were not out of your depth." Sharon assured her. "Everything else, you can learn."
"Thanks." Courtney said. "I just hope I can keep up."
Sharon's expression turned from approving to sly. "And speaking of 'keeping up'…" she whispered to Courtney. "On behalf of all 'red-blooded American womanhood'…" she sardonically imitated the radio announcer from the old "Captain America Adventure Hour" show. "Well done."
Earth-MCU
Insight Day: D Plus 2
"Sorry I wasn't there when you needed me. They had me decoyed all the way out to the middle of Azerbaijan and then cut off my extraction." Clint swore vehemently as he entered the conference room in Stark Tower.
"Thor and Banner haven't even made it back yet." Steve replied. "We did miss having you there, but it's not your fault. HYDRA did their best to make sure everybody was as far out of position on Insight Day as they could arrange."
"Steve and I were lucky that even we were in town at the critical moment." Natasha reassured him.
"What's going on, Cap?" Tony asked as he arrived. "I thought the big team meeting wasn't until tomorrow, when the others finally get here."
"There's something that I needed to bring up with you first." Cap said gravely. "And I'm not going to lie, I was really tempted to not bring it up at all. But Courtney convinced me that under these circumstances keeping it secret would only be selfish… and stupid."
"Really not the most reassuring opener." Tony said heavily as he sat down. "What's worse than finding out that the most powerful and influential security agency in the world was actually secretly run by Nazis and you had to burn it to the ground and upload all its secrets to the Internet to stop their secret plan to kill me, you, and millions of other people at the last minute?"
"There's no way to sugar-coat it." Steve sighed heavily. "But as near as we can figure, your parents' deaths weren't an accident. HYDRA had them assassinated."
Tony's expression immediately went blank, then red with rage. "You're sure?" he asked with dangerous mildness.
"The computer-Zola basically bragged as much to our faces in that bunker in New Jersey." Natasha said quietly. "We just finished digging through the SHIELD datadump looking for confirmation. There's no direct references, just a lot of separate data points to be correlated, but we're confident in our analysis."
"Why would they even do that?" Tony shook his head, dumbfounded. "Dad- dad made weapons. HYDRA loved weapons. He was alive and producing for SHIELD, which means he was producing for them."
"You told me once that he went from being pretty relaxed when you were a little kid to paranoid and suspicious later on." Steve said. "And he died when you were in college. We think he was starting to suspect something was rotten at SHIELD, that's why he closed himself off and started encrypting everything. Even his arc reactor research and the synthetic vibranium formula."
"And when they caught on that he was starting to catch on-" Tony said jerkily, as his hands twitched and fidgeted. "Okay, that fits. But your aunt didn't stop being SHIELD Director until a few years after Dad was killed." He turned to where Sharon was sitting silently at the foot of the table next to a pile of analyses. "How come she didn't catch on?"
"The same reason Fury didn't, until almost the very last moment." Sam answered for her. "Running an agency as large as SHIELD is like being a four-star general. Your job eats up basically all your waking hours. Howard Stark was a highly intelligent man who not only would have had access to everything but also have the relative leisure time to stop and lengthily ponder things he'd seen in hindsight instead of always having to be in crisis management mode. It's almost certain he'd spot it first."
"Yeah, okay." Tony nodded. "I get that. But this entire conversation doesn't make sense. HYDRA killed my parents, but by itself that's not something you'd want to keep secret from me. I was already all-in on the 'help finish the job' parade regarding our remnant Nazi problem, that's why we were getting the band back together in the first place. This would just be more motivation for me… so what's the part you didn't want to tell me?"
"We don't know who at HYDRA ordered the assassination." Steve said reluctantly. "It almost certainly wasn't Pierce, he wasn't senior enough then. But we do know who actually carried it out." Steve sighed and continued. "HYDRA sent their very best assassin on that job, no one less."
Tony's hand slammed down on the table. "Your old war buddy." He spat. "You really would have hidden him from me?"
"Tony, he was brainwashed." Natasha said. "He's not the one you need to go after."
"Brainwashed, shmainwashed-" Tony began furiously, only to be cut off by a furious "HEY!" from Clint.
"You remember that time you almost went face-first through the original Helicarrier's engine?" Clint continued. "Remind me again exactly how that happened?" He tapped his own finger against his temple twice. "Loki got in my head with the Mind Gem and made me almost kill you and everybody else in this room except for Sharon, Courtney, and Sam. And I did kill at least a dozen other SHIELD agents that day-" He winced and continued. "Anybody who said back then that it was my fault and I should hang for it, they get to stand up now and say Barnes should eat the guilt for what HYDRA forced him to do. But anybody who didn't say that back then is just trying to have it both ways."
"Tony." Courtney pleaded. "I heard the Winter Soldier try to kill Cap repeatedly… and I saw Bucky Barnes stop trying. That day by the river, he wasn't under their control anymore. He'd broken free. But that means he had something to break free from."
"And as a more practical concern." Sharon began diffidently. "We just got through saying that we don't know who ordered your parents' deaths. Which means that to the best of our knowledge, there's currently only one living person who might know."
"The guy they originally ordered to do it." Tony followed along. "Just- just give me a minute, okay?" he stammered out. "Let me work through this." He got up and started to pace furiously.
"You don't have to help me find him." Steve offered after a long moment. "I'm not asking you to do anything you don't want to do. I'm just asking… please don't hurt him."
"You-" Tony shook his head. "Okay, at least you came to me up front. If you'd kept this behind my back then I really would never have forgiven you. But as for the rest-" Tony stopped in shock and then slumped back into his chair. "You were talking about Loki, and I just realized something." He stopped and swallowed heavily, and then continued. "The day the Chitauri came, you remember that I flew back to the Tower ahead of you guys. Loki was already waiting for me in the penthouse when I got there. I had to stall him and keep him monologueing while I changed suits."
"I remember." Steve said. "What about it?"
"I skipped over the part where he tried using the Glowstick of Destiny on me, to send me out as his mind-controlled killbot against you." Tony said. "I mean, why bring it up? He tried his zappy thing with the Mind Gem, it didn't work, we had a ton of other shit on our plate that day anyway, so didn't occur to me to make a thing out of it afterwards. But only just now did I finally figure that if I hadn't lucked out massively-" He tapped his own chest. "If the Arc Reactor I had in my chest then hadn't somehow shorted out the Mind Gem then I really would have been turned into Loki's techno-zombie. And I'd have come out trying to murder you just as hard as Legolas here did."
He traded a grave look with the archer. "Only I wouldn't have been shooting at you with just a bow and arrow. If I'd been mind-controlled and wearing the Mark VII then I could have torn through all of you except Thor and Banner without breaking stride, and they'd never have been able to snap me out of it without disabling the suit entirely." He sighed. "Which means, of course, that I wouldn't have been available to get the nuke through the portal when they shot it at us and all of Manhattan would be gone. And if that wasn't bad enough, in hindsight we now know that us all dying there would also have meant that HYDRA would have inherited the Earth just a few days ago." Tony blinked. "Which come to think of it finally answers the question about who in SHIELD would even want to shoot a nuke at us that day and why, because Fury certainly didn't."
"If the nuke had detonated on us that would indeed have happened." Natasha agreed ruefully. "And yes, in hindsight that nuclear launch order was almost certainly Pierce's helpful 'suggestion' to the Council."
"So yeah. Mind control. It's really bad shit." Tony nodded. "Maybe I didn't use to take it as seriously as I should have, but I'll definitely have to keep a better eye out in the future." He looked at Clint and then Steve. "And maybe I should make more allowances for the people who weren't as lucky as I was."
"Thank you, Tony." Steve gasped in relief. "Bucky's in the wind right now, and just on my own hook I'd be lucky if I could find him in anything under months, if not years. But with you and JARVIS added to the equation-"
"Yeah, yeah. Sooner begun, sooner done, sooner we're finding what's left of HYDRA and busting all their asses." Tony agreed resolutely. "So when do we start?"
Author's Note: And so our tale ends, not with a full rewrite of the MCU but with a close-out on the climactic events of TWS and then enough foreshadowing so that it's plain how Courtney's presence will change canon as the butterflies have flapped their pretty little wings. Because you just saw the moment at which they dodged the bullet for Civil War, and we're almost certainly not even on track to Ultron because Tony has in hindsight learned a newer respect for the Mind Gem, as well as learning to actually talk more with his friends. Because yeah, if Tony hadn't lucked out massively against Loki in Avengers 1, everybody would have died right then and there. Only took him two years to finally clue in, but hey, canon Tony never clued in at all so he's still ahead of the curve there.
Courtney's role in TWS was largely as already stated – she didn't even come down from NYC until after shit broke loose publicly, and still didn't catch up to the rest of the group until about the same time Maria did and only joined them for the final raid on the Triskelion. However, her contributions butterflied things just enough that Pierce was wrapped up before he could kill the Council and Rumlow was dealt with expeditiously enough that Sam could make it to the top floor to evacuate with the others. And, of course, her presence changed Steve's final confrontation with Bucky from the canon 'I'm willing to die here rather than abandon you' to 'I can't die here, I promised my best girl I'd come back to her', which of course butterflied things with Bucky as well.
As for Sharon's appearance – well, for one thing, she's just one of my favorite MCU characters and I think she really got done dirty in canon. But I also felt her presence in this fic to be necessary because I'm enough of a romantic that if I can work in a graceful passing of the torch, then that torch is going to be passed. And no, Sharon is not carrying that torch herself. Despite her whole hero-worship she was raised with thing, and her desire to help look out for Steve because it's what Aunt Peggy would want, and possibly a wee bit of a crush, her sole contact with Steve in this timeline has been meeting him several times at work in the weeks in-between his return and the events of TWS, plus the riverside medevac here.
But Peggy, who is the previous bearer of that torch, isn't really up to speaking for herself right now. She's still alive for Steve to take Courtney to visit her in the retirement home, but her Alzheimer's has progressed enough that there's no guarantees there. And if there's any person who has the right to speak on Peggy's behalf in this regard, it's Sharon. So as the proxy for her aunt, she gets to be here and give the 'Please take good care of him' speech that the graceful ex is privileged to give to the current incumbent.
Canonically, the short period of time the loyal agents helped delay things in Launch Control did make all the difference. And everybody credits the computer tech with a gun to his head for his bravery there, and he earned it, but fewer people credit Sharon with her end of that achievement as well. So I did.
Just the post-credits stinger left, and we're done.
Insight Day: D Minus Zero
"Fire now." Captain America's voice came hoarsely through the headset.
"Steve! No!" Courtney cried into her microphone. Next to her, Sam Wilson placed a steadying hand on her shoulder.
"Do it!" Cap ordered. "Do it now!"
"Firing." Maria Hill acknowledged regretfully from her station in Flight Ops Control.
The three Insight Helicarriers each locked in on the other two with their main railguns and went to continuous rapid fire. The reinforced hulls on the three ultra-sophisticated engines of death had been built to withstand almost anything, but against their own orbital artillery at point blank range their armor was as much use as balsa wood versus a bullet. With great gouts of flame spurting from every seam the hovering vessels groaned, shuddered, and began to helplessly descend towards the ground. The comms cut out with a horrible flare of static.
"What a waste." Secretary Pierce whispered sadly, as he stood watching the destruction of Project Insight through the paranoramic windows of the conference room adjacent to his office. Scattered around his feet were the unconscious bodies of the HYDRA soldiers that the infiltrating Black Widow and Invisigal had subdued to rescue the World Security Council, and behind him stood Nick Fury with a levelled pistol.
"You're goddamn right it is." Invisigal spat hatefully at the arch-traitor and leader of HYDRA. "But we're really not talking about the same thing."
"Time to go, Mister Secretary." Natasha commanded him with a voice of ice as she stepped up to take his arm. "You're flying out with us."
"To be the guest of honor at the trial of the century?" Pierce smiled down at her slightly, his dignitas still wrapped around him like an invisible shield. "Thank you for the offer, but I'm afraid I must decline." And suddenly his face drew up tightly in a grimace, his left arm clutched tightly to his side, and he collapsed to the ground.
"Damn it!" Sam swore, running over to the fallen man and swiftly examining him. "Did he have a heart condition?"
"Yes." Nick answered him tonelessly. "He had a pacemaker put in five years ago."
"Well it must have had a manual override." Sam said grimly as he finished taking Pierce's pulse. "He just put his own heart into ventricular fibrillation. There's nothing I can do for him."
Pierce smiled thinly up at the surrounding heroes. "Hail… Hydra…" he silently mouthed, and died.
Fury exhaled heavily as he turned to face the stunned World Security Council members who'd silently been watching the entire tableau. "This whole place is about to come down. The escape elevator is in the Secretary's office, use it and get the hell to the basement shelter and then out the evac tunnel. We'll fly out."
"Are you staying dead, Nicholas?" Councilor Singh asked him. "Or can we report having seen you here?"
"Stay quiet for now, if you would." Fury acknowledged the gesture. "Officially Hill and Rogers had command of this op. We thought HYDRA was gone once before and obviously we were wrong. Might be useful for us to keep a hole card out this time."
"I understand. Thank you for saving us." the Councilor nodded back to Fury and his team. "All of us… from the consequences of our own mistake." He looked back out the window at the falling Helicarriers and then led his fellow Councilors into Pierce's office nearby.
"Let's go." Natasha said, and the four of them trotted back out to the helipad and the sleek black machine waiting for them there. Fury took the controls and Natasha the copilot's seat, and they lifted off into the air.
Courtney stared out the side window, white-faced, at the nearest of the three crashing Helicarriers – the one that Captain America was still on, facing off against the Winter Soldier. The helicopter lifted off just in time to avoid being caught as the edge of the Helicarrier's flight deck brushed against the side of the Triskelion and the skyscraper began to shudder and collapse. Undeterred, the Helicarrier continued its slow, tragic descent over the Potomac.
"Can we land on it? Get him off before it crashes?" Courtney begged.
"No." Sam shook his head, "Its descent is too erratic and half the flight deck is on fire. Plus he's on the bottom of the damned thing, in the targeting blister."
"Steve can do a five-thousand-foot fall into water without a parachute and swim it off." Natasha insisted. "All he has to do is get out while it's still over the river and he'll be fine."
"Then why hasn't he?!?" Courtney fretted.
Steve's voice came back into their headsets, full of static, as Natasha managed to partially restore radio contact.
"Your name… is James Buchanan Barnes…" Steve's voice came painedly over the headset, followed by the thunderous clang of a metal arm punching against a vibranium shield..
"Is that idiot still trying to talk him down?" Sam swore viciously.
"I'm not gonna fight you. You're my friend." Steve continued, as a grunt of rage and another furious punch was heard faintly in the background.
The sounds of combat continued, as the Winter Soldier furiously pressed the attacks. Steve grunted in pain several times, but appeared to be successfully blocking or dodging most of his opponent's blows.
"But I'm not just gonna lie down and let you kill me either. I can't do that." Steve continued, as Courtney sniffled.
"Shut up!" the Soldier's voice came faintly through the microphone as he continued attacking.
"I met a girl, you see." Steve explained. "She's wonderful. Feisty on the outside, sweet on the inside… everything you'd ever hoped I'd find…"
"I don't CARE!" the Soldier shouted.
"I can't wait to introduce you to her." Steve said. "You'll get along great, I know you will. But you gotta come with me, Buck. Just stop fighting and let me get us out of here."
"You… don't know me!" the Soldier swore hoarsely. "You're! My! Mission!"
"We're running out of time, Buck." Steve pleaded. "Her name's Courtney. I can't abandon her. But I can't abandon you either. Please don't make me choose between you two… because I don't know how I can."
Several more frantic clangs of the shield sounded as the Soldier's voice faded away to incoherent grunts of pain.
"'Cause she's the woman I love, and you're my brother. And I want us all to be together… till the end of the line."
Silence fell for one awful moment before the armored-glass viewing blister on the bottom of the Helicarrier was smashed open by a huge chunk of debris falling through it from the inside. The radio cut out again with a horrible finality, and Courtney sobbed.
"I see him! One o'clock!" Sam suddenly pointed between the pilots' seats and out the windscreen, where two barely visible man-sized silhouettes were falling towards the Potomac from the torn-open blister. One of them had a glint of metal coming from their arm, and the other was clearly dressed in a bright red, white, and blue costume.
"I'm going after him!" Fury put the helicopter into a steep dive, and Sam fought his way back into the helicopter's passenger compartment and over to the side door as they levelled out.
"Keep a tight hold on that strap!" he ordered Courtney, and then furiously pulled on the door handle and slid it back. "Right door open!" he called out, and then immediately began hyperventilating, charging himself with oxygen.
"Going into a hover… now!" Natasha called back from the pilot's compartment, and the helicopter came to a standstill barely six feet over the river.
"Diver in the water!" Sam acknowledged as he leapt out the door, followed almost immediately by Courtney. The two of them arced down into the depths of the Potomac where Cap had just fallen and swam down towards the struggling figure in the flag costume. Off to their side, just at the edge of visibility, another swimmer saw them coming and turned away.
The two divers each grabbed on to one side of the struggling Cap and managed to, with some assistance from their rescue, use their combined muscle power to haul him back up to the surface.
"Ugh, I still can't believe how heavy he is!" Courtney complained as everybody's head broke the water.
"He had a big breakfast." Sam snarked as the three of them dog-paddled towards the nearest shore. "And what the hell were you thinking, jumping in after me? I'm the one with pararescue training and you're not even a lifeguard! I could have ended up having to try and rescue two drowning people!" he insisted.
"And I'm the one with the bionic lungs, remember?" Courtney called back heatedly. "Maybe I would have ended up having to save you from drowning!"
"It's nice to see… you're all getting along… so well." Cap joked weakly as they helped the battered and bleeding hero up onto the muddy shore.
"Jesus, man, you've got at least three bullet holes in you!" Sam swore as he examined the wounded Cap. "Did you ever consider ducking?"
"And I thought you had a problem with getting stabbed!" Courtney lovingly fussed over Steve, before a motion out of the corner of her eye made her look up. "Guys!" Courtney called out alarmedly. Both men turned and then tensed at the sight of the cyborg assassin standing maybe fifty feet away from them down the riverbank, also bedraggled and soaking from where he'd just swam up out of the river.
"Bucky?" Steve asked plaintively. "Are you okay?"
"… Steve." Bucky nodded slowly back at him, as the other two gasped. "I… don't know." he continued faintly. "I know you… but I don't know how I know you."
"HYDRA messed with your head. Took away your memories." Steve pleaded. "Come with us. We can help you."
"It's not safe here." Bucky shook his head as he stepped away. "I have to go."
"We won't force you to do anything." Courtney interrupted Steve. "But please come back when you can, Bucky. Steve misses you so much."
"You're his girl?" Bucky looked at her curiously.
"Yes." Courtney smiled tearfully. "I'm Courtney. It's nice to meet you."
Bucky fought for words that he couldn't find and then nodded somberly to her. He turned swiftly and disappeared into the nearby underbrush.
"I'll be goddamned, you were right." Sam stared after him wonderingly. "He was still in there, even if he's still pretty messed up."
"Told you so." Steve grunted, and then leaned back painedly and gasped.
"Yeah, now lie still." Sam turned back to Steve and then looked up again as the helicopter landed nearby. "He's stable for right now, but he's not going much further without medical attention!" Sam called out.
"Hill's staying at what's left of the Triskelion to coordinate search-and-rescue!" Fury yelled down to them from the pilot's seat. "We already contacted her, she's finding someone to swipe a vehicle and give you a medevac. Natasha, stay with them. I've got to get out of here before someone else comes along to notice I'm still alive. Besides, the chopper can't lift all of us."
"I'm on it." Natasha acknowledged as she jumped down out of the helicopter with the first-aid kit. "Here, let's at least get some dressings on him."
"Yeah." Sam said as Fury nodded good-bye to everyone and took off again. The three of them finished giving Steve what first aid they could and then started helping him stagger up the embankment toward the nearby frontage road.
"Van coming." Sam said warily as a nondescript service utility van with no insignia made an appearance after several minutes. Its headlights flashed at them once, then thrice.
"It's okay, I know the driver." Natasha said, and unhesitatingly led the others towards the van. The vehicle came to a stop and the driver, an athletic young blonde woman with a bloody bandage tied around one arm, leapt out.
"How bad is it?" she greeted them worriedly.
"Bad enough I'm thinking hospital rather than safe house, but not bad enough we need to run all the red lights." Sam answered her.
"This is Sam and she's Courtney." Natasha introduced them. "Sam's the medic, so right now we follow his lead."
"Straight to the nearest ER, got it." the blonde agent acknowledged. "Okay, I swiped a trauma kit if you need more supplies, it's in the back of the van. Now everybody load up, we need to get out of here before half the alphabet agencies in Washington start setting up a containment perimeter and then let people leave only in the back of a detention vehicle."
Sam and Natasha helped the wounded Steve into the back compartment and got to work on him with the trauma kit, leaving Courtney sitting nervously in the passenger seat. After spending several blocks driving quickly yet cautiously to escape the immediate perimeter, the agent relaxed enough to turn and speak to her passenger.
"So you're the one." she greeted Courtney. "The girl from another universe."
Courtney looked knowingly back at the woman questioning her. "Did you know Steve well?" she asked with just a touch of frost.
"We met at work a few times, but no, we weren't close." she acknowledged Courtney respectfully. "I was originally supposed to be heading up a new special security detail for him, but that got changed after his wormhole trip. As is, we were just office acquaintances."
"I'm imagining Steve was a very popular sight around the building." Courtney replied suspiciously.
"Oh he was." the woman acknowledged. "But I wasn't kidding myself that I had any… claim on part of his life." She trailed off embarrassedly. "Sorry, I'm trying not to make this awkward but in my case I literally grew up on stories of him from when I was a little girl, so it was never not going to be awkward actually meeting him at SHIELD. Or meeting anyone else who was close to him."
"Do most little girls in this world grow up on Captain America fairy tales?" Courtney inquired tentatively.
The agent actually chuckled at that. "Do you know what the difference between a fairy tale and a war story is?"
"One of them starts out with 'Once upon a time' and the other one starts out with 'Now this is no shit.'" Sam called amusedly from the back compartment.
"Exactly." the young woman smiled. "And in my case I got all the war stories direct from the source, my Aunt Peggy."
"Peggy-?" Courtney blinked, before her voice took on a knowing tone. "Ohhhhh. You're an Agent Carter."
"Guilty." she nodded back to Courtney. "So I was really just… hoping that you were a nice person." She looked out the windshield pensively. "Aunt Peggy said that Captain Rogers was always the one looking after everyone else, but that he made it almost impossible to properly look after him." The van came to a halt at a red light and she turned to look at Courtney imploringly. "So I know it's not my place to talk but please take good care of him, all right? Because he'll never do enough of that for himself."
"I'm not that bad." Came a weak protest from in back.
"Yes you are." Sam and Natasha both replied immediately.
Courtney relaxed and smiled warmly at the woman alongside her. "I will. I promise. And my friends call me Courtney."
"I'm Sharon." she replied, and they shook hands – and then Sharon winced as she put exertion on her wounded arm.
"I'm sorry!" Courtney drew her hand back. "Sam, you need to look at Sharon's arm once you've got a moment."
"I'm fine, it's just a knife slash." Sharon protested ."Superficial, barely broke the skin."
"What happened?" Courtney asked her.
"I was in Launch Control trying to stop the Helicarriers from even getting out of the bay." Sharon sighed. "It was a standoff in there between me and a few other loyalists and several of the STRIKE goons. Rumlow had his pistol to the head of one of the techs, but I had the drop on Rumlow … or I thought I did, at any rate. As soon as I blinked he pulled a sleight-of-hand trick with his holdout knife and suddenly I don't have a pistol anymore and he's using my weapon to shoot up the room. And then he made it to the launch panel and hit the controls despite everything I could throw at him." She slumped dejectedly. "I'm sorry I screwed it all up. If I'd done my job right then Captain Rogers wouldn't have needed to get himself shot up there at all."
"How long did you delay the launch?" Natasha asked matter-of-factly.
"Maybe sixty seconds, ninety at the outside." Sharon shook her head. "Barely any time at all."
"Sixty seconds was the difference between me and Sam getting onto the Helicarriers in the first place and them already being well into the air before we'd even made it back outside the building." Steve assured her. "What you did was as much part of saving everybody's lives as what we did. You did good, Sharon. Peggy would be proud of you."
Sharon blushed to the tips of her hair and furiously concentrated on the drive ahead, unable to answer. "We're almost at the hospital. What story am I telling?" she eventually asked.
"Drop me off a block away." Natasha ordered. "Sam, Courtney, you're just passers-by who found Steve at the side of the river. Sharon, you swiped the van from the Triskelion motor pool on your own initiative and went looking for crash survivors along the shore. I was never here."
"Got it." Sharon acknowledged, and stopped the van to let Natasha get out and disappear before resuming motion. "All right, we'll be at the ER in a couple of minutes. Everybody clear on what to say?"
"Natasha made it kinda easy to follow, yeah." Steve acknowledged with a grunt.
Sam forced Steve to lie down again, and Courtney turned to Sharon. "Are you going to vanish too once we get there?" she asked.
"I'm sure Natasha will be back in touch soon, she just doesn't want to get pinned down anywhere until she's had a chance to scope out the immediate reactions to the event and set up some fallback positions." Sharon assured her. "As for me, I might not have a job anymore but I still have friends to take care of… several of whom are riding in this van right now. So I'll stick with you guys at least until she turns up again to help brainstorm next moves."
"Glad to hear it." Courtney said. "Because honestly, I'm kinda out of my depth with all these spy games. I just drove down overnight from New York once the whole 'Captain America Fugitive' thing went public, and even then I couldn't actually find anyone until the whole mess on the causeway gave me a breaking news spot to go follow."
"If you're someone that Romanov and Hill would take along for the Triskelion raid at all, then you were not out of your depth." Sharon assured her. "Everything else, you can learn."
"Thanks." Courtney said. "I just hope I can keep up."
Sharon's expression turned from approving to sly. "And speaking of 'keeping up'…" she whispered to Courtney. "On behalf of all 'red-blooded American womanhood'…" she sardonically imitated the radio announcer from the old "Captain America Adventure Hour" show. "Well done."
* * * * *
Earth-MCU
Insight Day: D Plus 2
"Sorry I wasn't there when you needed me. They had me decoyed all the way out to the middle of Azerbaijan and then cut off my extraction." Clint swore vehemently as he entered the conference room in Stark Tower.
"Thor and Banner haven't even made it back yet." Steve replied. "We did miss having you there, but it's not your fault. HYDRA did their best to make sure everybody was as far out of position on Insight Day as they could arrange."
"Steve and I were lucky that even we were in town at the critical moment." Natasha reassured him.
"What's going on, Cap?" Tony asked as he arrived. "I thought the big team meeting wasn't until tomorrow, when the others finally get here."
"There's something that I needed to bring up with you first." Cap said gravely. "And I'm not going to lie, I was really tempted to not bring it up at all. But Courtney convinced me that under these circumstances keeping it secret would only be selfish… and stupid."
"Really not the most reassuring opener." Tony said heavily as he sat down. "What's worse than finding out that the most powerful and influential security agency in the world was actually secretly run by Nazis and you had to burn it to the ground and upload all its secrets to the Internet to stop their secret plan to kill me, you, and millions of other people at the last minute?"
"There's no way to sugar-coat it." Steve sighed heavily. "But as near as we can figure, your parents' deaths weren't an accident. HYDRA had them assassinated."
Tony's expression immediately went blank, then red with rage. "You're sure?" he asked with dangerous mildness.
"The computer-Zola basically bragged as much to our faces in that bunker in New Jersey." Natasha said quietly. "We just finished digging through the SHIELD datadump looking for confirmation. There's no direct references, just a lot of separate data points to be correlated, but we're confident in our analysis."
"Why would they even do that?" Tony shook his head, dumbfounded. "Dad- dad made weapons. HYDRA loved weapons. He was alive and producing for SHIELD, which means he was producing for them."
"You told me once that he went from being pretty relaxed when you were a little kid to paranoid and suspicious later on." Steve said. "And he died when you were in college. We think he was starting to suspect something was rotten at SHIELD, that's why he closed himself off and started encrypting everything. Even his arc reactor research and the synthetic vibranium formula."
"And when they caught on that he was starting to catch on-" Tony said jerkily, as his hands twitched and fidgeted. "Okay, that fits. But your aunt didn't stop being SHIELD Director until a few years after Dad was killed." He turned to where Sharon was sitting silently at the foot of the table next to a pile of analyses. "How come she didn't catch on?"
"The same reason Fury didn't, until almost the very last moment." Sam answered for her. "Running an agency as large as SHIELD is like being a four-star general. Your job eats up basically all your waking hours. Howard Stark was a highly intelligent man who not only would have had access to everything but also have the relative leisure time to stop and lengthily ponder things he'd seen in hindsight instead of always having to be in crisis management mode. It's almost certain he'd spot it first."
"Yeah, okay." Tony nodded. "I get that. But this entire conversation doesn't make sense. HYDRA killed my parents, but by itself that's not something you'd want to keep secret from me. I was already all-in on the 'help finish the job' parade regarding our remnant Nazi problem, that's why we were getting the band back together in the first place. This would just be more motivation for me… so what's the part you didn't want to tell me?"
"We don't know who at HYDRA ordered the assassination." Steve said reluctantly. "It almost certainly wasn't Pierce, he wasn't senior enough then. But we do know who actually carried it out." Steve sighed and continued. "HYDRA sent their very best assassin on that job, no one less."
Tony's hand slammed down on the table. "Your old war buddy." He spat. "You really would have hidden him from me?"
"Tony, he was brainwashed." Natasha said. "He's not the one you need to go after."
"Brainwashed, shmainwashed-" Tony began furiously, only to be cut off by a furious "HEY!" from Clint.
"You remember that time you almost went face-first through the original Helicarrier's engine?" Clint continued. "Remind me again exactly how that happened?" He tapped his own finger against his temple twice. "Loki got in my head with the Mind Gem and made me almost kill you and everybody else in this room except for Sharon, Courtney, and Sam. And I did kill at least a dozen other SHIELD agents that day-" He winced and continued. "Anybody who said back then that it was my fault and I should hang for it, they get to stand up now and say Barnes should eat the guilt for what HYDRA forced him to do. But anybody who didn't say that back then is just trying to have it both ways."
"Tony." Courtney pleaded. "I heard the Winter Soldier try to kill Cap repeatedly… and I saw Bucky Barnes stop trying. That day by the river, he wasn't under their control anymore. He'd broken free. But that means he had something to break free from."
"And as a more practical concern." Sharon began diffidently. "We just got through saying that we don't know who ordered your parents' deaths. Which means that to the best of our knowledge, there's currently only one living person who might know."
"The guy they originally ordered to do it." Tony followed along. "Just- just give me a minute, okay?" he stammered out. "Let me work through this." He got up and started to pace furiously.
"You don't have to help me find him." Steve offered after a long moment. "I'm not asking you to do anything you don't want to do. I'm just asking… please don't hurt him."
"You-" Tony shook his head. "Okay, at least you came to me up front. If you'd kept this behind my back then I really would never have forgiven you. But as for the rest-" Tony stopped in shock and then slumped back into his chair. "You were talking about Loki, and I just realized something." He stopped and swallowed heavily, and then continued. "The day the Chitauri came, you remember that I flew back to the Tower ahead of you guys. Loki was already waiting for me in the penthouse when I got there. I had to stall him and keep him monologueing while I changed suits."
"I remember." Steve said. "What about it?"
"I skipped over the part where he tried using the Glowstick of Destiny on me, to send me out as his mind-controlled killbot against you." Tony said. "I mean, why bring it up? He tried his zappy thing with the Mind Gem, it didn't work, we had a ton of other shit on our plate that day anyway, so didn't occur to me to make a thing out of it afterwards. But only just now did I finally figure that if I hadn't lucked out massively-" He tapped his own chest. "If the Arc Reactor I had in my chest then hadn't somehow shorted out the Mind Gem then I really would have been turned into Loki's techno-zombie. And I'd have come out trying to murder you just as hard as Legolas here did."
He traded a grave look with the archer. "Only I wouldn't have been shooting at you with just a bow and arrow. If I'd been mind-controlled and wearing the Mark VII then I could have torn through all of you except Thor and Banner without breaking stride, and they'd never have been able to snap me out of it without disabling the suit entirely." He sighed. "Which means, of course, that I wouldn't have been available to get the nuke through the portal when they shot it at us and all of Manhattan would be gone. And if that wasn't bad enough, in hindsight we now know that us all dying there would also have meant that HYDRA would have inherited the Earth just a few days ago." Tony blinked. "Which come to think of it finally answers the question about who in SHIELD would even want to shoot a nuke at us that day and why, because Fury certainly didn't."
"If the nuke had detonated on us that would indeed have happened." Natasha agreed ruefully. "And yes, in hindsight that nuclear launch order was almost certainly Pierce's helpful 'suggestion' to the Council."
"So yeah. Mind control. It's really bad shit." Tony nodded. "Maybe I didn't use to take it as seriously as I should have, but I'll definitely have to keep a better eye out in the future." He looked at Clint and then Steve. "And maybe I should make more allowances for the people who weren't as lucky as I was."
"Thank you, Tony." Steve gasped in relief. "Bucky's in the wind right now, and just on my own hook I'd be lucky if I could find him in anything under months, if not years. But with you and JARVIS added to the equation-"
"Yeah, yeah. Sooner begun, sooner done, sooner we're finding what's left of HYDRA and busting all their asses." Tony agreed resolutely. "So when do we start?"
* * * * *
Author's Note: And so our tale ends, not with a full rewrite of the MCU but with a close-out on the climactic events of TWS and then enough foreshadowing so that it's plain how Courtney's presence will change canon as the butterflies have flapped their pretty little wings. Because you just saw the moment at which they dodged the bullet for Civil War, and we're almost certainly not even on track to Ultron because Tony has in hindsight learned a newer respect for the Mind Gem, as well as learning to actually talk more with his friends. Because yeah, if Tony hadn't lucked out massively against Loki in Avengers 1, everybody would have died right then and there. Only took him two years to finally clue in, but hey, canon Tony never clued in at all so he's still ahead of the curve there.
Courtney's role in TWS was largely as already stated – she didn't even come down from NYC until after shit broke loose publicly, and still didn't catch up to the rest of the group until about the same time Maria did and only joined them for the final raid on the Triskelion. However, her contributions butterflied things just enough that Pierce was wrapped up before he could kill the Council and Rumlow was dealt with expeditiously enough that Sam could make it to the top floor to evacuate with the others. And, of course, her presence changed Steve's final confrontation with Bucky from the canon 'I'm willing to die here rather than abandon you' to 'I can't die here, I promised my best girl I'd come back to her', which of course butterflied things with Bucky as well.
As for Sharon's appearance – well, for one thing, she's just one of my favorite MCU characters and I think she really got done dirty in canon. But I also felt her presence in this fic to be necessary because I'm enough of a romantic that if I can work in a graceful passing of the torch, then that torch is going to be passed. And no, Sharon is not carrying that torch herself. Despite her whole hero-worship she was raised with thing, and her desire to help look out for Steve because it's what Aunt Peggy would want, and possibly a wee bit of a crush, her sole contact with Steve in this timeline has been meeting him several times at work in the weeks in-between his return and the events of TWS, plus the riverside medevac here.
But Peggy, who is the previous bearer of that torch, isn't really up to speaking for herself right now. She's still alive for Steve to take Courtney to visit her in the retirement home, but her Alzheimer's has progressed enough that there's no guarantees there. And if there's any person who has the right to speak on Peggy's behalf in this regard, it's Sharon. So as the proxy for her aunt, she gets to be here and give the 'Please take good care of him' speech that the graceful ex is privileged to give to the current incumbent.
Canonically, the short period of time the loyal agents helped delay things in Launch Control did make all the difference. And everybody credits the computer tech with a gun to his head for his bravery there, and he earned it, but fewer people credit Sharon with her end of that achievement as well. So I did.
Just the post-credits stinger left, and we're done.