What if...Spider-Gwen was in the MCU?

London

"OK, Fury's got the coded message," Happy announced, "your friends are at the Tower Bridge."
"OK."
"Your boy called it the London Bridge, but I figured it out. I'mma go scoop them up, okay?"
"Yeah."
"We're close."
"We're close."
"How're the suits comin'?"
"Almost done."
"Nearly there."
"Good."
"Wait, wait, whoa, whoa. Before you go," Peter handed Happy a small box, "If something happens to me, could you please give this to MJ?"
"You're gonna make it back. You'll give it to her yourself. 'K? You got this."
"We got this."
"Now walk me through it."
"We know it's illusion tech, right?"
"Mhmm."
"All we have to do is get on the inside of the illusion, then take it down, find him, and he's just a guy, so I can take E.D.I.T.H. right back."
"I'll be there, invisible, in case things go south."
"Right, but last time, you got hit by a train."
"True, but this time...how do I explain this? Uh...I have like a sixth sense."
"The Peter-tingle. That's what you're talking about, right? It's not working, though. I heard it wasn't working right now. Is it?"
"It is working. Well, I don't-I don't know if it's working..."
"Good, so you got the Peter-tingle. That's the plan. I'm gonna go get your friends. You get that Peter-tingle back online," Happy ran back to the cockpit, and began fiddling with the controls.
"I got this, I got this," Peter said, hyping himself up.
"Do you seriously call it a 'Peter-tingle'?"
"Well, my name's Peter, and it makes my head tingle, so..."
"I always called it a spider-sense, 'cause, you know, spiders."
"Huh, that's-that's smart."
London came into view, with a giant storm brewing over the Thames. We crawled out the plane, and onto the side, sticking, so we could have a quick drop.
"All right, comms check. Can you hear me, kids?" Happy checked in.
"Yep."
"Yeah, I can. It's just a little loud out here."
"I like the new suits."
"Thanks."
"Thanks."
"Whoa, you guys sure that's not real?"
"Yeah, it's just a hundred times bigger than we expected."
"Still the play?"
"Uh-huh. We need to get high enough, so Beck doesn't see us coming."
"Copy, stay sticky," Happy said as we ascended.
"Hey, Happy?"
"Yeah, kid. What is it?"
"We need to have a serious conversation about you and my aunt!" Peter yelled, launching off the plane. I followed, and we engaged our parachutes. I turned invisible, and we prepared to enter the hologram.
"AHHHHHH! It's not real, it's not real, it's not real!"
We detached our parachutes, and glided down on web wings, landing on drones inside the hologram.
"Whoa."
"Awesome."
We started the first stage of our plan, attaching a web to each drone. As soon as we hit the final one, Peter nodded, we fell, and he hit the spider-logo on his chest, electrocuting the drones, causing them to short out. The illusion broke apart in places, and we landed on non-electrified drones, spotting Beck on a bridge.
"I see you," Peter said. The illusion fully dissolved around us, and we landed on the bridge, taking cover behind a taxi.
"Happy, say something, to let me know you're alive!" Peter yelled over the comms.
"I'm here, I'm here."
"Oh, Happy, thank goodness."
"I bought us some time, but not much."
"We're trying to get to Beck, but I can't shake these drones!"
The drones followed him, he webbed them up, and I took down as many as I could without making Beck suspicious I was there. We swung around the bridge, webbing them up, shocking more, but they kept coming. After a few minutes, the only drones we could see were the ones guarding Beck on the bridge. Peter was out of webs, so he pulled a seatbelt off of a car, wrapped it around a piece of debris, and made a shield out of a bridge sign. He paused for a second, then ran off to confront Beck on the bridge with me following.
Peter and Beck had a brief struggle on the bridge, that ended with Peter holding Beck by his helmet.
"Your lies are over, Beck."
"This certainly isn't ideal, but...I have contingencies. E.D.I.T.H.?
"Just give me the glasses."
"You want these?" Beck pulled the glasses out of his suit, "Come and get them."
The drones activated their hologram tech, turning the corridor dark with a green mist covering the floor, "Come on, Peter-tingle." The lenses on his suit closed, and he flipped around, grabbing drones smashing them into each other. I simply walked through while phasing, so I wouldn't interfere or get hit, and got into my position.
"Why aren't these drones firing? No, FIRE ALL THE DRONES...NOW!
The drones surrounding Beck flew forward and fired at Peter, but a stray bullet glanced off a window and hit Beck in the chest. It looked real, but something felt off about it, probably another illusion.
"Beck! Beck...you lied to me. I trusted you," Peter confronted him.
"I know. That's the most...disappointing part. You're a good person, Peter. Such a weakness...Stark was right. You do deserve that," Beck said, holding the glasses out to Peter.
Peter reached to the side, and grabbed something. The Beck in front of him slowly disappeared. Peter had grabbed a gun another Beck, hiding in the cloaking technology, had aimed at his head.
"You can't trick me anymore," Peter grabbed the glasses, and slipped them on his face, "E.D.I.T.H., turn off the drones. Do it, execute them all."
"You know, Peter...maybe, maybe I can," The Beck on the ground said.
"Wha-"
Then I turned around, and kicked the real Beck across the face. He fell out of the illusion he was hiding behind, massaging his jaw. He stared at Peter, who grinned.
"You see, Beck," I said, turning visible, "Your greatest weakness was not technology, or the people you worked with, it was your pride. You were so good at manipulating people, that when someone who could possibly see through your illusions came along, you chose to ignore her, underestimate her, and that was your downfall."
"And it'll be yours," he groaned.
"No, I don't think so. I've learned to rely on my friends, trust my instincts, and listen to all the facts. You didn't. You believe your greatest strength is yourself, everyone else is a liability, and not important to your cause. You shun everyone who could jeopardize your plans, and, by doing that, expect them to lose self-confidence, doubt themselves, then they can't interfere. But you know what? No one can tell me how important I am, because no one but me gets to decide how important I am but me."
"That was a good speech," Beck said, slowly standing up, "too bad you won't be able to repeat it." He pulled another gun out, and aimed it at my head. Peter gave me a nod. I grabbed the gun, crushed the barrel, then fought Beck like my life depended on it, which it probably did.
The fight ended when I punched him hard enough to send him flying through the window, and onto the road below. Peter and I jumped down to check.
"How could you do all of this?" Peter asked.
"You'll see, Peter. People need to believe...and nowadays...they'll believe anything," Beck said before he stopped moving.
"Is he...is this real?" Peter turned to me, "E.D.I.T.H. says all illusions are down."
"I-I need a breath," I said, jumping off the bridge, as Michelle ran down the bridge toward Peter. I swung onto the grass on the bank, and rested my head in my hands. I just killed someone. There's a chance the Beck on the bridge is an illusion, replaced by the drones' illusions as he fell, but I still killed him. Good thing nothing was recording on the bridge.
Happy dropped us off at the airport, and we rode with the rest of our class to New Jersey.
After we made it through customs, I powered on my phone and still had no messages from my dad. I was getting a little concerned, I haven't heard from him for the last few days.
I joined Ned and Betty who were walking over to where Peter and Michelle were talking. As we approached, Michelle spotted her mom, and ran off, waving bye.
"You guys are so cute," Betty told them.
"Thanks. Uh...I was thinking we should all...I don't know, like go on a double date or something."
"Oh, we broke up," Ned and Betty said in unison.
"What?"
"No, wh-what? Why?"
"Men and women grow apart, but the journey they share together will always be a part of them."
Betty placed her hand on Ned's cheek, "You are so wise."
"Thank you."
They walked off together, and I leaned over to Peter, "I give it 6 months before they're back together."
"I give it 3," he said as we exited the airport.
May was talking to a security guard.
"May!" Peter yelled, and I waved
"I promise you...oh, they're here. Don't give me a ticket!" May ran over to us, and gave Peter a hug, "Gwen, I'm taking you home, too. So glad you're okay. "
"No. For real, I'm good," Peter reassured her, "I'm actually really...fine."
"Let's go. Where are your bags? Oh, right, they got blown up."
"Yeah."
May ushered us into her car, and handed Peter a paper bag, "I got you some hot buttered bagels."
"Thank you so much."
"I know my boy."
Peter opened the bag, and offered me a bagel. I took it, and we ate before May dropped me off at my building. I didn't have my key, but there was no one in the hall, so I decided to enter through the wall.
"Dad? You home?" No response. I resolved that if I didn't hear from him by tomorrow morning, I would research it and contact the department. I fell asleep grateful for the comfort of my own bed.
The next morning, I still hadn't heard anything from my dad, so I sent an email to Glory, the secretary at the department, asking for an update on the Westview investigation.
I changed into my suit and headed out to swing around the town a bit more, and saw Spider-Man swinging with MJ toward Times Square. I followed them, invisible, ready to fight off any bad guys, so they could have a good date.
They landed by a lamppost and chatted for a second before the electronic billboards changed, "This is breaking news. We come to you now with revelations about last week's attack in London. An anonymous source provided this video, it shows Quentin Beck, a.k.a., Mysterio, moments before his death. A warning, you may find this video disturbing." Mysterio appeared on screen, "'I managed to send the Elemental back into the dimensional rift, but I don't think I'm gonna make it off this bridge alive. Spider-Man has an army of weaponized drones, Stark technology. Ghost-Spider is pursuing me, I can't hide from her forever.'" The footage cut to when Peter took the glasses from the illusion Beck, retrieving E.D.I.T.H.
"'Are you sure you want to commence the drone attack? There will be significant casualties.'
'Do it! Execute them all!'" Drones firing, and people screaming were heard off-screen. The footage then cut to me punching Beck out the window, and him landing on the ground, motionless.
The news anchor appeared back onscreen, "This shocking video was released earlier today on the controversial news website, 'TheDailyBugle.net.'" A bald, moustached man replaced her on a screen, "There you have it, folks: conclusive proof Spider-Man ordered a drone attack on London civilians, and Ghost-Spider was responsible for the brutal murder of Mysterio! An interdimensional warrior who gave his life to protect our planet, and who will no doubt go down in history as the greatest superhero of all time. But that's not all, folks. Here's the real blockbuster. Brace yourselves, you might wanna sit down.'" The footage cut back to Mysterio on the Tower Bridge, "I don't know how much time I have before she finds me, and I don't want to endanger anyone else by revealing Ghost-Spider's identity, she's gone crazy and could hurt everyone, but Spider-Man's name is-" the feed cut off. I had barely breathed a sigh of relief when Mysterio came back on screen, "Spider-Man's name is Peter Parker!" A picture of Peter flashed across the screen and the whole crowd turned to stare at him.
"What the-"

A/N: That's it! I'll probably add onto this when No Way Home has come out (or the next MCU film with Spidey), but probably as a one-shot. Thanks for reading!