Something I called the Cacolord, which I did some time ago.
Credit goes to Eriance, id, 3D Realms, and anyone else I forgot to credit.
Dead Soul- A simple edit of Scalliano's Stalker.
Credit goes to scalliano, id, and Samuel Villarreal.
Flesh- A recolor of Vader's Fleshspawn.
Credit goes to Vader.
Guardian- An edit of hnsolo77's Poe (Realm667).
Credit goes to Tormentor667, hnsolo77, Eriance, and Vader.
High Priest- An edit of MagicWizard's Nosferati (Realm667).
Credit goes to id, Raven, and MagicWizard (Realm667).
Insane Drone- An edit of Megaherz's Chaingun Grunt from the Project MSX Extra Badass Monsters Pack.
Credit goes to Megaherz, Vader (body), id (chaingun), and Ghastly_dragon (helmet).
Knight- An extensive edit of Eriance's Araknight, meant as a literal two-faced monster facing both directions.
Credit goes to Midway, id, and Eriance.
Priest- A simple edit of one of The_Funktasm's aliens for his XCOM project.
Credit goes to Raven and The_Funktasm.
Trooper- Edit of Virtue's Kull Warrior (Realm667).
Credit goes to Rogue Entertainment and Virtue.
Mutant- Mash-up of Vader's Chainsaw Zombie (KZiZD) and Pyroscourge's Lesser Mutant (Realm667). Yes, the Mutant is supposed to melt away after death.
Credit goes to id, Rogue Entertainment, Raven, Vader, and Pyroscourge.
Watcher- Edit of Vader's Cacolich (Realm667).
Credit goes to Vader and ItsNatureToDie (death frames).