Class 1A and 1B along with their teachers decided it would be a good idea to hop of Team Fortress 2 but they ended up on a corrupted server

Deku: "What is this?"

Kirishima: "This is a custom server!"

Uraraka: "Who made it?"

Monoma: "I don't know, man."

You spot them and walk towards them

Katsuki: "What the hell is that!?"

Kirishima: "That's the Red Slayer!"

Shoto: "Guys, I think we're locked in."

Eri: "I'm really scared!"

You are now in front of them

Sato: "Okay, that thing can't be alive."