You are Doom Guy — the actor, not the marine. You have been cast in a cable TV reenactment of 2007's Knee-Deep In ZDoom. History was never your strong subject, but the role will keep the lights on and help pay Daisy's vet bills. Maybe it will even revive your acting career. You adjust the prop helmet, strike a few poses with your character's handgun, and prepare for day one of filming.