It's sometimes easy to get disoriented while manning the turret of a tank. I think it would be helpful if we had some kind of indicator telling us how our turret was roatated with respect to the hull of the tank.
Also it might be nice to have a keyboard command to rotate the turret back the the forward and level position without having to do it manually.
This might be asking too much but would it also be possible to rotate the turret from the open hatch view as if the tank commander was directing the gunner instead of only being able to control the turret from the gunners position? This would allow for rapidly pointing the turret in the general direction of the threat/target and then jumping to the gunners position to set up the shot.