It'd be pretty neat to be able to see your soldier inside the tank (or in the driver's seat of a halftrack). It's kinda weird to be a floating head inside a tank, without the pedals moving or anything. Don't actually put the avatar under the player's control, just have him react to what the player want's the vehicle to do (press the pedals, steer, or control the turret, ect.). What I mean by this is that the avatar is kind of "glued" into place, and the only part the player can freely move is his head, the rest of him only really reacts to whatever the player has the vehicle do (player drives around, so avatar depress pedals, shifts transmission and move knobs and such). Also, it'd be nice for the gunner to have an interior where he can look around inside (at the level where you are usually in the crosshairs for the main gun); look at the loader, and press ironsights to look in the aiming reticle.