There are two types of Commando in Doom 3: one which carries no firearm but has his right arm demonically modified into a muscular, whip-like tentacle, while the other one has both his human arms intact and carries a Chain Gun. They are both extremely dangerous foes due to their high offensive capabilities, and are among the most elite of Doom 3's monsters, posing a similar threat level as the Revenant, and exceeded only by the likes of the Arch-Vile, Mancubus, and Hell Knight.