The vehicle may always fire one additional weapon system to those that would normally be able to be fired giving the speed or status of the vehicle. This shot may even be targetting at a different target than that engaged by the crew. It is conducted with a BS 2.
If the crew are stunned then the vehicle may still be moved directly ahead in a straight line up to its maximum move.
14
4
48"
9
2
Heavy 1
36"
5
Heavy 3