You can make Doomguys pretty easily using Maelstrom’s Edge plastics and Pig Iron’s system trooper helmets. I’ve gone one step further and used Hasslefree weapons to equip mine with shotguns, chainguns, plasma rifles, rocket launchers (minor converting required) and super shotguns. There are also engineer and medic variants, and an officer with an oversized pistol. I’m still painting the 7 objective markers – 3 skulls, 3 key cards, and a small pet rabbit.
These guys are being used for my wargame FRAG, a mass battle system inspired by 90s FPS games.