It’s funny, Doomguy and the intern seem to be the only ones aware.

W H E N ?

Doesn’t he look at the camera several times?? I honestly don’t remember it’s been a while since I played the entire campaign

Well he owns copies of the classic dooms, and it’s not coincidence that he does the thing with his shotgun(I know there’s a word for it but I don’t think loading is the right one) perfectly in time with the beat drop of At Dooms Gate in the beginning