The world of Warhammer 40K is filled with fantastic mechanical contraptions including giant battle robots, or "mecha." Some of these are true robots, entirely machines, but more commonly, there's a person or a team of people inside it directing it. The cockpit of the humanoid battle robot is where the head would be. Here's a quick sketch of something inspired by my recent reading of a Warhammer novelization. The black area at its "head" is the cockpit where the "rider" or robot commander sits.
Warfare in Warhammer-land is not much like warfare as we know it here. Giant battle robots can do a whole lot of damage but could be brought down by one well-placed air strike, let alone a couple of missiles using 40K's advanced technology. But giant battle robots are cool and fun to play with. It is still...only a game.
Warhammer battle mecha sketch is pen and ink with brush marker on sketchbook page, about 4" x 5", October 13, 2013.