Usually I wouldn't respond to this, but you have pissed me off. Doom Slayer is ABSOLUTELY NOT just a guy with a gun. HE IS A SCHIZOPHRENIC GOD that forgot he can do whatever he wants and periodically remembers "oh yeah, I can just be invincible and multiply my damage by four," that is CANONICALLY how the buffs work in the modern DOOM games. And yes, Doom Slayer has killed Gods.