>>6305608Chest vents are for the reactor. They're humanoid because they take advantage of AMBAC maneuvering to move at very high speeds in three dimensions in space, hence the name Mobile Suit.
You would probably prefer Zeon suits since those are explicitly militaristic and in standard military colors. The Type 62 and Prototype Gutank are also amazing "grounded designs." Look for anything named Hard Graph.
Gundam.
