Invasion Of Two Army's (Mha X Halo Crossover)

Regret

It cuts to Cario Station with Thirteen examining the dead bodies of the covenant.
"What are you doing ma'am", asked a marine.
"Just learning about species outside of Earth, I've always dreamed of visiting outer space to find other civilized species", answered Thirteen.
"And here you are, in a way you found aliens, not the friendly kind though", said the Marine.
"I know that, I didn't say I was going to spot friendly aliens 100%", said Thirteen.
"THIRTEEN", yelled Present Mic running in the armory.
Present Mic showed up huffing and puffing from being exhausted.
"You've missed it".
"What happened", asked Thirteen.
"They got more information on that Prophet's plan, he is planning to activate that super weapon they found to kill us all", said Present Mic.
"Holy crap", said Thirteen and the Marine.
"It was already bad enough they discovered there are more than one of these giant rings, the rest of the students are freaking out about this", said Present Mic.
The other half of class 1A were in the bridge horrified by Regrets plan.
"I don't want to imagine how the activation method works, what if it fires out giant lasers that destroys a whole planet in only seconds", said Ashido.
"Actually what we learned from Cortana the halo is supposed to spread radiation across the entire galaxy affecting certain cells in the nervous system, harmonizing all neurological frequencies", said a marine.
"Was it really necessary to explain all of that information to teenagers", scolded an officer.
"I was just explaining how they really work", said the marine.
"Wait, you guys knew what it does the whole time and the commander didn't seem to know that ring was a weapon at first", yelled Mineta angerly.
"Cortana only told a few people about the firing method of the ring, the few who knew didn't bother to explain how it fires unlike this guy here", said the officer.
"And commander Keyes just didn't know what a halo looked like until see saw that one, she knew it was a weapon", said the marine.
"You guys better stop those aliens from activating that ring", said Sero.
"And if it does get activated I hope it kills Mineta first", said Jirou.
"HEY", yelled Mineta.
All Might is still watching the monitors.
"Why were these things even built in the first place", asked All Might.
"They were built by a highly advanced race called the Forerunners, the purpose of these rings was to stop the flood by destroying their food, such as covenant and homosapiens", said the officer.
"Wait, our town, it's getting eaten up by those creatures, how much progress have you guys made", asked All Might.
"The flood on Earth can be stopped if they're engulfed in flames, but they spread rapidly and it's very likely the city will have to be blown up or else they will spread across the rest of the planet", answered the officer.
"We'll see how much longer Endeavor can ignite his flames", said the marine.
"I feel like we should go down there and help if it's getting out of hand", said Sato.
"We've already sent enough assistance for now, but if the situation gets worse we may have to compromise", said Hood.
"We're all still in danger if they don't stop that ring from firing, please stop them Midoriya, please", said All Might.
Cutting back to the temple at Delta Halo, everyone walks out seeing more temples across the water.
"Wow, look at all those temples", said Kirishima.
"It's already been stated several times this place is more than just a super weapon but I wasn't quite expecting this", said Asui.
"You know, I think the Forerunners built these new structures around the old, to protect them, to honor them, pure speculation, mind you, I'd need to make a thorough survey to be sure", said Cortana.
"Come on guys this way", said Dubbo.
Everyone ran back towards the ruins infested with covenant.
Meanwhile, Armatenant's squad was riding in a pelican towards the library of installation 0.5.
"Alright, we are going to be near the library in the quarantine zone while Donald's squad will be in the outer area, it's probably going to be a bit cold there since I'm seeing snow", said Armatenant.
"Of course, this can't be a halo ring without it's own weather system", said Iida.
"This place is terraformed there should be weather", said Yaoyorozu.
"I imagine Bakugo is going to beat up that prophet pretty badly, it is the kinda thing he would do", said Uraraka.
"For sure, yes he has matured over time but he's still a self centered jerk", said Iida.
"That prophet needs to be taken out but that won't stop the covenant from trying to grab the index and activate this ring, I hope the commander gets there in time", said Yaoyorozu.
"We'll make sure she will, I'm sure the other half will have less of a crowd over there", said Armatenant.
"There better be, but even with a small crowd Deku would do anything to help others, I expect his body to not look so bruised and broken this time", said Uraraka.
"(COM) Sorry but I can't get to the library, there's some kind of shield in the way ", said a pelican pilot.
"Looks like we're going to be around this wall for a while", said Armatenant.
Back to the ruins, everyone has cleared a large platform and saw a gondola speed away.
"Okay I feel like these guys are getting a little easier to take down", said Kirishima.
"Are you sure, they seem harder for me", asked Tokoyami.
"Actually they're about the same", said Asui.
"I wish I had more time to decipher these inscriptions, the Forerunners revere this place, that much is clear, but was it a temple, or a university... I can't say", said Cortana.
"These Forerunners you keep mentioning must be really advanced, I think it's both", said Tokoyami.
Suddenly two hunters dropped in from a phantom.
"You have got to be freaking kidding me", yelled Stacker.
The hunters were about to fire their hands but they were pulled back by Aizawa's scarf and Deku's black whip.
"Hurry", said Aizawa.
Master Chief snuck a plasma grenade in a gap while Tokoyami used dark shadow to attack the gaps in the arms Deku is holding back and Kirishima punched the gap in the back.
Dark shadow managed to cut of the gun arms of both the hunters.
One of them blew up and another was severely damaged by Kirishima's red gauntlet move.
The hunters were still alive charging with their shield arms but Asui finished them with a beam rifle she found.
"Nice shot Froppy", said Kirishima.
"Thanks (ribits)", said Asui.
" (COM) Cortana, the Covenant are getting nosy, I don't want to give away my position, so I'm rerouting a few stragglers back to you, I apologize; these Pelicans are all the support you're gonna get", said Keyes.
"Understood, ma'am, a gondola's launching from the far towers, big surprise, it's full of Covenant reinforcements", said Cortana.
"Of course", said everyone.
They started sniping covenant on the gondola coming towards them.
"Well at least this is good testing on our stamina", said Deku.
"This kinda of energy drain is in hero work too, you knew exactly what you to say Midoriya", said Aizawa.
"That's all of them", said Master Chief.
"Well, they were nice enough to bring us a ride", said Cortana.
"Alright everyone aboard", said Dubbo.
Everyone walked on the gondola.
"I'll drive", said Stacker.
"What's to drive, it comes here, it goes there", asked Dubbo.
"I'm sure there's a control panel somewhere, this thing won't drive itself", said Stacker.
"Actually it can, once you hit that activation switch", said Cortana.
"Oh", said Stacker.
Stacker activated the gondola and it started moving.
"This gondola won't get us all the way to the main temple, but it'll get us close", said Cortana.
"I guess that means we'll have to take multiple until we get to Regret", said Master Chief.
"So why are these guys so obsessed with this ring other than trying to kill us with it", asked Deku.
"They're actually obsessed with all of the Forerunners creations, not entirely sure why but they must believe the purpose of the rings differently", answered Cortana.
"Sounds like they need a little more education on them", said Tokoyami.
Buggers came in out of no where and started firing.
"This lake couldn't have been created by volcanic action, which means it was either built this way on purpose, or was created by some other cataclysmic event... sorry, were you trying to kill something", said Cortana.
The buggers were defeated and the gondola stopped a another structure.
They clear out more covenant around an elevator.
"What do you guys think of this trip so far", asked Kirishima.
"Crazy", said Tokoyami.
"Insane", said Asui.
"That's all the enemies here", said Dubbo.
"So what is this hole for", asked Kirishima looking down into the hole.
"Ah, now I see, there's a submerged section that connects these towers to the outlying structures, looks like we're going down, unless you'd... prefer to swim", said Cortana.
The elevator came up and everyone walked in.
The elevator dropped down and journeyed underwater and everyone peered around the murky depths.
"So you guys are pro heroes right", asked Dubbo.
"In training but yes, although I'm aiming to be the greatest number one hero of all time, with a smile", answered Deku.
"ARE YOU SERIOUSLY GOING TO KEEP TELLING EVERYONE THAT EVEN THOUGH WE BOTH KNOW I'M GOING TO DEFEAT YOU CLAIMING THAT TITLE", yelled Bakugo.
"You must be the rival", said Stacker.
"You guys are powerful but I'm not convinced you will be better than All Might", said Dubbo.
"Was it really necessary to put them down like that", yelled Stacker.
"Come on, All Might was the symbol of Peace and I don't believe anyone else can claim that title", said Dubbo.
"Maybe the green boy can", said Stacker.
"It takes more than a powerful quirk to be the symbol of peace, it takes courage, loyalty, kindness, a person who does their job right", said Dubbo.
"My ass, I said maybe not definitely because I'm as sure as hell you can't seem to tell the difference between probability and definite", yelled Stacker.
"You calling me a dumbass, I assure you that I am smarter than you think I am, you're the dumbass thinking Endeavor would be the next symbol of peace", yelled Dubbo.
"I never thought that Dubbo, I've always thought Endeavor was a putz", yelled Stacker.
Stacker and Dubbo continued to argue.
"Did I start this", asked Deku.
"It's not the first time they fought over who claims the symbol of peace title", said Master Chief.
They eventually calmed down.
"Okay how about this, if you see this boy in action then will you reconsider", asked Stacker.
"Don't bet", said Master Chief.
"It's a bet then, loser will drink spoiled milk, we'll see what happens with this boy", said Dubbo.
They shook hands while Master Chief face palms.
"(sighs) They betted the spoiled milk", said Master Chief.
"I'm still working my way up there but Dubbo is right about All Might being the symbol of peace, it's been a challenge to claim that title and it still is", said Deku.
"I didn't say I hated All Might, I was just saying there could be someone else who can claim that title in the future", said Stacker.
"I think All Might was the greatest too, that's why I want to be like him", said Deku.
"Yeah, he likes him so much he worships him a little too much, he's built an All Might shrine in his dorm", said Bakugo.
"You weren't supposed to say that to anyone", said Deku embarrassed.
"Psht, that's nothing ole Pvt. Chips Dubbo here has a shine of him in his entire house, and wears him all the time when not in uniform", said Stacker.
"How about I bet the loser will drink two cartons of spoiled milk for exposing my secret", said Dubbo mad.
"That's not a secret, everyone knows that because you said you liked All Might so much he's all over your house", said Stacker.
"Oh yeah.... I forgot okay, cut me some slack", said Dubbo.
"One more word fighting about the symbol of peace title or All Might I will use you as bait to lure the covenant into a trap", said Master Chief.
"Sir yes sir", said Dubbo and Stacker saluting.
"Whoa, you're not serious are you", asked Kirishima.
"Yes... yes I am", answered Master Chief.
"Word of advice volunteers, don't mess with Master Chief", said Stacker.
"I've intercepted a secure transmission from Regret's Carrier to something called High Charity, it seems to be a formal apology to the Prophets of Truth and Mercy, apparently, Regret jumped the gun when he attacked Earth, he's asking the other Prophets to 'forgive his premature arrival', arguing that 'no human presence was foretold', that explains why there were so few ships in his fleet, but it's odd that a Prophet would have such bad intel about his enemy's homeworld", said Cortana.
"Truth", asked Tokoyami.
"Mercy", asked Asui.
"They're the other two religious leaders in charge of the covenant empire", said Cortana.
"So there are three leaders", said Kirishima.
"And one of them is going down", said Bakugo.
"There's another transmission, oh, he's just telling them he's angry at you volunteers for helping us to stop his plan, he's now saying one strong Demon was already enough to handle but eleven more is just to much, Regret already noticed you guys but it looks like Truth and Mercy are already catching up in this", said Cortana.
"That is strange, although those other prophet's must believe in the Great Journey too", said Deku.
"Most likely since they are the other leaders it turns out", said Cortana.
"Even if we take out Regret there's still Truth and Mercy left and this war will not be over yet", said Aizawa.
"Then we will have to be prepared for those two", said Tokoyami.
"I don't know much about High Charity at the moment but it may be some sort of mobile station", said Cortana.
"Heads up, we're arriving in another area", said Master Chief.
After emerging from the elevator, they blasted covenant across the underwater part of the temple.
Deku was trying out the shotgun on the buggers.
"COME ON YOU CAN AIM BETTER THAN THAT", yelled Bakugo.
"I'm trying out this shot gun I've found", said Deku.
"FINE, BUT DON'T GET SHOT BY THEM", yelled Bakugo.
Deku nearly got shot by a bugger.
It didn't take him long to realize the shot gun was too slow.
"Okay the shotgun is not working, this takes an assault rifle", said Deku.
Deku switched to an assault rifle and shot down a lot of buggers.
"That's better, using think guns that fire faster are better for the buggers, more are coming down".
"He's a fast strategist", said Stacker.
"I see that", said Master Chief.
All the buggers were eventually down.
"I think that's all of them", said Deku.
Not paying attention, an Honor Guard leaped up behind Deku and slashed him with his energy sword.
"MIDORIYA", yelled everyone.
"Take that Bunny Demon", said the Honor Guard.
Master Chief pulled out a shot gun.
"You leave him be squid head", said Master Chief.
"The Demon, and a few of the other special ones", said the Honor Guard in amazement.
Deku slightly moved his head knowing he's still alive.
"I'm okay, but that hurts", said Deku.
"Dammit, I thought I killed him", said the Honor Guard in anger.
"THE ONLY ONE DYING HERE IS YOU", yelled Bakugo.
"You're as strong as the Demon, one strongest Demon we can handle but 11 more gets us concerned", said the Honor Guard.
"But you guys don't seem to consider us a huge threat", said Master Chief.
"Not after we activate this holy sacred ring", said the Honor Guard.
Master Chief blasted the Honor Guard in the head and on the torso weakening him.
Then the Guard leaped onto Master Chief tried to slash him with his sword.
Chief finished him off with a pistol.
Kirishima helped Deku up.
"Are you okay", asked Kirishima.
"Yeah he didn't get me that bad, but that came out of nowhere", answered Deku.
"Be aware of that next time kids, sometimes enemies will sneak up on you by surprise, I'm just happy you're alive Deku", said Master Chief.
"How could I forget about the sneak attacks", asked Deku.
"Because you were too busy playing with the buggers (laughs)", joked Bakugo.
"Not funny Kacchan", said Deku.
"Come on, there's another elevator that way, I think it takes us back to the surface", said Stacker.
A giant hologram of Regret started talking.
"Most of those we encountered in our search were compelled to join our Union, to take part in moment of promise, Freedom for Allegiance, Salvation for Service, but some, like the Humans, chose to impede our progress, block our access to sacred sites, damage Holy Relics, for their transgressions, the Humans shall be hunted until none remain alive", said Regret's hologram.
"Oh man, he's so dead", said Dubbo frustrated.
Everyone took the second elevator once again going through underwater.
"Regret's carrier just received a response from High Charity, a very well-encrypted message from the Prophet of Truth, listen to this: 'Your haste has jeopardized the fulfillment of our Covenant, threatened our Grand Design. That you shall be spared a public display of our contempt is thanks only to Mercy and his wise counsel. Truth, Mercy, Regret, three Prophet Hierarchs, killing Regret should shake up the Covenant leadership, but, frankly, it sounds like we might be doing Truth a favor", said Cortana.
"I don't understand a whole lot of what you said but I beginning to have this feeling he doesn't want to share his power with others 'ribit'", said Asui.
"That may be what he said although we need more insight on that, heads up, we will be approaching more covenant", said Master Chief.
"I forgot to thank you for saving me from that Honor Guard", said Deku.
"Taking down enemies is what I do, but don't be hugging me for that", said Master Chief.
"Not a hugger I'm assuming, but I wasn't going to do that", said Deku.
"Let's just take out the prophet and prepare for our next mission", said Master Chief.
Emerging from the second elevator, the entered another area killing more covenant and there was another hologram of the Prophet of Regret spouting religious rhetoric.
"Every member of the Covenant shall walk the path, none will be left behind when our Great Journey begins, that is the Prophets' age-old promise, and it shall be fulfilled", said Regret's hologram.
"Great Journey, doesn't he know what these rings do", asked Cortana.
"Maybe that's their belief", said Aizawa.
"It must be, but they don't know what they're doing", said Master Chief.
"Wait, I'm assuming activating this ring must begin the Great Journey for them, that's what Little Joshua meant by that, by activating this ring, it partially makes sense now, but instead it will destroy everyone, even them", said Deku.
"Clearly", said Aizawa.
"It's no secret the Forerunners are beyond our intelligence", said Asui.
"And it's also no secret the covenant are COMPLETE IDIOTS", yelled Bakugo.
"Wait, what are these Forerunners, are they another alien race", asked Deku.
"Actually they're probably some sort of human being, because according to their technology, only human the type spices can activate halos, including normal humans and Forerunners", answered Cortana.
"Wait.....if the covenant can't activate this ring, then why is commander Keyes grabbing the index", asked Deku.
"She might have a plan to do something with it so the ring won't be activated", answered Master Chief.
"The only way the covenant will be able to activate this superweapon is if they force a human being to activate it", said Aizawa.
"We won't let that happen, not without a fight", said Bakugo.
"We're... already fighting them dude", said Kirishima.
"This is my last run Chief, I'm nearly out of fuel, we've secured the first tower cluster, so I'll set down there, call when you're ready for evac", said a pelican pilot.
A Pelican drops off more weapon pods and some Marines.
"Glad we can make it Chief", said a female Marine.
"Come, there's more covenant over there", said Master Chief pointing to another area of the outside structure.
Once the area was cleared, everyone saw another gondola.
"There, another gondola, looks like it leads straight to the main temple, not much further now", said Cortana.
"Yes we're almost there", said Deku.
Everyone ran to the gondola but Dubbo was concerned.
"Oh, great, we're gonna ride another one of these death-traps", said Dubbo.
"Oh come on the last ride wasn't that bad", said Stacker.
"(Pssh) Easy for you to say", said Dubbo.
"If you forget about the Covenant and the fact we're stuck on some freaky alien world, it's actually kinda fun", said the male marine.
Chief started the gondola after everyone stepped on and started riding to the main temple.
"(COM) How's it going, you guys", asked Keyes.
"So far, so good, we're approaching the main temple now", answered Cortana.
"(COM) Roger that, I'm as close to the Library as I can get, there's some sort of ... barrier, we're trying to find a way around it, I'll keep you posted", said Keyes.
Some banshees came flying in blasting at the heroes.
Chief dodged all of the bullets.
"I need a rocket launcher", said Master Chief.
Deku found one.
"Here", yelled Deku throwing the rocket launcher to Chief.
The banshees continued to fire.
Chief ran to the top of the gondola and blasted down a banshee.
Another gondola rode by filled with elites with jetpacks.
"There, I see The Demon, and the Rock Demon too", said elite 1.
"No I see the Frog Demon", said elite 2.
"I see the Explosive", said elite 3.
"No wait, there's also Raven, Scarf, and...", said elite 4.
"The Bunny Demon", said all the elites.
The flew over to the heroes and started blasting them.
"Look out", yelled Aizawa.
Kirishima hardened himself to block the bullets.
"Elites on jet packs guys", said Kirishima.
Bakugo tried AP shot but missed because the elites kept flying around.
"STOP FLYING AROUND SO I CAN DESTROY YOU", yelled Bakugo frustrated.
"We will do anything to start the Great Journey", said elite 3.
"THAT JOURNEY IS A MYTH YOU IDIOTS", yelled Bakugo.
"Wait what", asked elite 1.
Bakugo took elite 4 down but was still alive.
"Got ya", said Bakugo.
Dark shadow damaged elite 3 and 1 and crashed down on the ground as well.
"Don't forget about us", said Tokoyami.
"You take on the Rock Demon, you take the Frog, I'll go after the Raven", said elite 1.
Elite 4 went after Kirishima and elite 1 took on Tokoyami.
Elite 3 searched for Asui.
Elite 2 was still handling Bakugo.
"Where are you Frog Demon I'm not afraid of you", said elite 3.
Asui was in camouflage on the ceiling inside the bottom of the gondola.
Elite 3 eventually walked down inside.
"Come on out and fight you green creature".
Asui spat paralysis mucus on elite 3 paralyzing him.
Stacker and Dubbo found elite 3 and helped Asui finish him off.
"(To Stacker) Told you death trap", said Dubbo.
Aizawa shot at elite 4 and Kirishima punched him with red gauntlet.
"Thank you sensei", said Kirishima.
"Let's get the other two", said Aizawa.
Tokoyami already took down elite 1.
"Or not", said Kirishima.
"These guys aren't too bad", said Tokoyami.
Bakugo kept missing elite 2 flying around.
Then a banshee shot Bakugo but his armor protected him.
"HA, YOU GOTTA DO BETTER THAN THAT YOU WORTHLESS PIECE OF SHIT, I LOVE THIS ARMOR ", yelled Bakugo.
Elite 2 shot Bakugo on the chest part of the armor causing the shield to go down further.
It started beeping.
"I got you right where I want you", said elite 2.
Deku eventually shot down elite 2 with his shot gun.
"I thought shot guns don't work on flying enemies", mocked Bakugo.
"I guess I should of said it doesn't work on swarms, sorry there's so much happening I don't know what I'm saying sometimes", said Deku.
"Yeah and that's not a good excuse nerd", said Bakugo.
Chief took down the last banshee they arrived at the main temple.
"We're here", said Master Chief.
Everyone walked off the gondola and saw an uncountable number of Slipspace ruptures, and hundreds of Covenant ships come out of Slipspace, followed by High Charity.
"That's the largest Covenant fleet I've ever seen... the largest anyone's ever seen", said Cortana.