They first appear in E1M02, or E1M10 if you take the secret elevator in E1M1. Upon death, they'll drop a machine gun containing 6 bullets; if the player has already has one, the drop will just be an ammo clip containing 4 bullets. In the original sprite they are shown wearing bright blue uniforms. In the mission packs they have a new sprite with black uniforms, similar to the real-world SS of World War II.