Nothing exists; all is a dream. God -- man -- the world -- the sun, the moon, the wilderness of stars -- a dream, all a dream; they have no existence. Nothing exists save empty space -- and you! And you are not you -- you are but a thought.
I'm pretty sure Giant Military Units are in a different catagory from normal Military Units... but I could be wrong.
I never thought of considering both giant units to be exempt from Fusion Cells bonus. I figured since Mechamonster is a machine, installing fusion cells would just make sense.