Dark grey to black
Other distinguishing features:
Half of Grimm's face is cybernetic.
Base of operations:
Doom's IV headquarters
Grimm is a warrior from the future.
Grimm has some equipment which can enter peoples minds and visualize what he retrieves.
Rob Liefeld's part of the Image universe
Doom's IV (vol. 1) #1 (1994)
Country of origin: