What if the Doom Slayer was in MHA? MHA X DOOM ETERNAL (Discontinued)

Chapter 1: A New World.

Silence.. more silence.. so much that it was driving him crazy.. The Doom Slayer, or Flynn Taggart, had been fighting demons for eons, billions of years, and had saved humanity of several dimensions at least 4 times. And, yet, the fucking silence was driving him insane. It had been about 3 months since he had finished off that bitch Davoth and been stuffed in this god forsaken sarcophagus. He wasn't even fucking dead and those fucking Maykers stuffed him in there like he had perished. No, he was far from dead. He had only been knocked unconscious, but those bastards didn't even check if he was dead or not. He's had enough. Enough of the darkness, the silence, the feeling of being alone. At first, when he trapped himself inside of Hell to keep the demons at bay, he had felt the feeling of being alone, but that feeling quickly disappeared when he remembered what those bastard demons did to his wife, his son, all his friends, everyone he had ever known... Daisy.. his beloved pet rabbit.. he knew that he had to fight against the demons, to slaughter them all. After that, he had never felt the feeling of being alone, except when he was separated from his trusty super shotgun, of course. But now that the demons could no longer go out of hell with their lord slain, Flynn felt as if he had no purpose, he felt.. empty.. *Thump* A thud was heard from inside the sarcophagus. *Thump* Another, 2 more, 4 more. Then suddenly, the cursed sarcophagus was opened, well, more like.. exploded.. As it turns out, Flynn had been punching the sarcophagus from the inside! Now free, he climbed out of the blasted thing. He looked around, seeing that he was in the same place he had taken the Dark Lord's life sphere to summon him. Flynn walks around the place and finds his Praetor Suit nearby. After reminiscing over the time he had brutalized demons with the impenetrable armor, he puts it on. After about 2 minutes, he successfully gets it on, and the suit reboots. Suddenly, a robotic voice could be heard inside the helmet.

"Slayer.. Hahaha, I thought you would never awaken."
It was Hayden, Samuel Hayden, former director of the Union Aerospace Cooperation, or U.A.C., was alive, well, as alive as a robot with a human conscience could be.
Flynn said nothing.
"I assume you want a portal opened to the fortress?" Hayden asked.
Flynn only grunted in response as he chose not to speak a long time ago. Suddenly, a blue portal opens in front of the Slayer. Flynn slowly walks through the portal. The portal takes him to a highly technologically advanced floating fortress. The Fortress of Doom, it was of both Mayker and Sentinal design. Doomguy immediately heads over to his room in the Fortress of Doom. He looks around the room, at his desk with his triple monitor computer, at his old praetor suit he never fully dismantled, at the collection of action figures he had collected, at all his weapons hanging up in the opposite corner, at his 3 guitars hanging up on a wall with the skull of a demon above them, one was of the same color scheme and material as his armor, another was made partly of solid Argent energy, the third looking like it was pulled straight off of a demon. Then he looks over at the opposite wall, seeing the large picture frame with a picture of him in his old 2016 armor with Daisy in one arm and his super shotgun in the other. He looks down in sadness, remembering just how cute that little ball of fluff was. He thinks,
<Is.. is it time to try and start anew?>
Suddenly, Flynn spots a weird computer chip on his desk. He's confused for a moment before realizing it.
"Vega..." He spoke..
Doomguy grabs the chip and rushes out of his room and into the main portal room. He runs to the main console and quickly plugs the chip into it. After a few moments of painstaking silence, there was an electronic whirring noise, and after a few more seconds, a synthetic robot voice was heard,
"S-S-S-Slayer? Dr. Hayden? Am I.. Alive..?"
Flynn let out a sigh of relief.
"Vega? How are you- I thought we had lost you. It's good to have you back on the team, Vega." Hayden had commented, finally being seen walking into the portal room.
"It's good to be back, Dr. Hayden, " Vega replied.
Flynn just stands there, thinking. After a moment, he says,
"Vega?"
"Yes, Slayer?" Vega answers in a surprisingly curious tone.
"Do.. do you think it's possible for us to travel to another dimension?" Flynn asks.
After a moment, Vega replies,
"Yes, it is possible. Would you like me to scan for possible candidates?"
Flynn nods. After a few seconds of silence, Vega finally says,
"After searching throughout the multiverse, I have found 13,437,328 dimensions that are possible for us to travel to, but I narrowed it down to around 150 worlds that I think you would like. I am sharing the results with your HUD now."
Flynn scans through the dimensions, and none of them caught his eye, except for one.
"Has this one grabbed your attention?" Vega pulls enhances the dimension information.
Taggart nods.
"Would you like me to configure and open a portal for us and the Fortress for this dimension?"
Taggart nods again.

After about 2 minutes, a giant blue portal opens outside of the Fortess of Doom, and it floats inside of the portal. We then appear in the orbit of this dimension's Earth.
"After doing some research, I have found that 80% of humanity in this world has special abilities titled quirks. Quirks are generally categorized into 3 different categories: emitter, transformation, and mutation. Emitter type quirks almost always have no effect on one's physical appearance, with them being able to use their abilities without the need of a transformation. Transformation type quirks require or are significantly stronger when the user is transformed. Mutation type quirks most of the time appear at birth, although they can appear at the age most quirks come in at. This age being 4 years old. The first quirk appeared in China as a baby was glowing brightly at birth." Vega tells.
It takes a while for Flynn to process this information, but when he does, he looks at this new Earth from the window of the portal room and thinks,
<Hopefully.. I can start a new life here..>