Vibro Cannon

For each Vibro Cannon that has already been fired at the same target in this phase, improve the AP of this weapon by 1 (to a maximum of -3) and add 1 to the wound rolls for this weapon (to a maximum of +2). For example, if a firing model is the third to target the same unit with a vibro cannon, its AP is -3 and you add 2 to its wound rolls. If this weapon inflicts any damage on an enemy unit, that unit cannot Advance in its next Movement phase unless it can FLY.