Modder ‘legon2007’ released a brand new version of Fallout: GZDoom Total Conversion. As the title suggests, this mod brings enemies and weapons from the Fallout games (mainly from Fallout 3) to the classic Doom games.
Version 0.4 adds new textures, the Radscorpion, and some new weapons. Moreover, it removes the Enclave Base.
In total, Fallout: GZDoom features six enemies from the Fallout games. These are the Ghoul, Glowing One (not in the actual game, you have to spawn it), Radscorpion, Rifle Raider, Pistol Raider and Soldier.
Fallout: GZDoom also features dismemberment effects. The modder used some gibs sprites and models from Sargeant Mark IV’s Brutal Doom V21.
Speaking of Doom/GZDoom mods, you may be interested in this Ratchet & Clank mod. We also suggest checking out Call of DOOM: Black Warfare, Silent Hills P.T. Demake, Duke Nukem 3D Total Conversion Mod, ALIENS: ERADICATION TC and this Half-Life Demake.
You can download this total conversion mod from here.