-1
This would be a major change in the way our turrets work and an unnecessary one. If your turret gets hit and jammed like you said you wont be able to move it and therefore wont be able to shoot the target, right now if the turret is hit you just can't shoot out of it, so in the end it will be the same thing.
Do you really care if your bottom turret moves up or down on the landing? I would much rather have HTC make a new plane for us than a three dimensional moving turret.