I'm leaning toward armored core and muv-luv mechs.
This is my input on how the heavy would look like, without the shield.
(The best defense is a good offense)
A slightly bigger heavy frame if possible. The rest of the frames look ok the way they are.
I would also suggest a kneeling animation or something similar for the heavy (so the pilot can get in easier).
Been around since firefalls early days, shooting mosquitoes in redwood forest. Spent a lot of time in game and probably seen every stream of lost in new eden. Lets just say i was a bit more than dissappointed when the game "lost its way". I'll be here in the shadows, watching.
-HITMAN-