Hmm, whilst I'm not sure about the aiming (I'd have to play the game first), the control should be something that gamers are used to, for example, most 3d games use 'w' to move foward, 'a' to move left, 'd' to move right, and 's' to move down. Oh! And maybe 'space' for jump, and click the the left mouse button to shoot. I think thats a pretty general control scheme.