Hi. I played your game 20-30 minutes. So at first look I must say It looks great in terms of graphics and gameplay is good. I would like to know what 3d app have you used for graphics, maya, 3ds max? ... and for effects. You modeled all the props ? Have you used udk or other engines for rendering?
Some things I will change in this game:
-- If I'm selecting the radar icon and than I change my mind and I want to cancel it , can I do that ? If not, you could do it like this: If I touch again that icon, I will cancel it.
-- The green border from the enemy units I destroyed - I will change it to red.
Good luck and congratz