Played through GLBoom+
100% completed for Kills, Items, and Secrets
Difficulty: Ultra-Violence
Platform: Windows-based PC
IWAD: Final Doom: TNT: Evilution (tnt.wad)
PWAD: TNT: Revilution (tntr.wad + tntr.deh)
Map04: Blood Factory
Introduction
Blood Factory is one of the abandoned UAC facilities occupied by evil spirits and zombies. Time to enjoy bloody onslaught. Definitely keep in mind a couple of arch-viles can incinerate you.
Secret Places
source