All Aboard! At the start of the Shooting phase, roll a D6. On a 1, the vehicle may not fire this turn. On a 2+ the vehicle may fire as normal, selecting a different target for each weapon if it wishes.
Full Speed Ahead! Grot Tanks move 2D6" per turn instead of moving like other vehicles, but may still fire all of their weapons without penalty. If a squad of Grot Tanks opts to move Flat Out, it moves D6". Grot Tanks ignore difficult terrain, but are affected by dangerous terrain.
Roll once for the entire squadron. If a double 1 is rolled, on Grot Tank suffers a Penetrating hit.