They are bulky humanoid machines. Their heads are silver domes that bear a resemblance to naval mines. Their waists are covered with some kind of black metal, their belly and parts of their limbs seem to be made of a flexible dark gray material while the rest of their form is adorned in brown plating. Red lines, markings and lights detail their bodies.

Guttermen wield large miniguns and riot shields, and what appear to be coffins of some sort are attached to their backs. They are from ULTRAKILL