good ass game
three small criticisms though
enemies will sometimes randomly despawn. wasn't a big deal till it happened to the final boss and it softlocked me.
non-breakable secrets have no marker as far as I can tell, I think that they probably should? I never played doom though.
the final boss' slam attack is sometimes undodgeable, the fight is still possible (on normal) and all but having a way to dodge it by jumping or something would be useful.