In the beginning of Guns Akimbo Miles is playing some FPS with soldiers shooting some kind of werewolves:
What is this game?
Arqade is a question and answer site for passionate videogamers on all platforms. It only takes a minute to sign up.Sign up to join this community
That is Metro 2033 Redux by the looks of it. I think that is the level where you start heading towards the tower in chapter 7. Here is a video of said level, to which the opening scene appears to be what the movie shows.
Other give aways: