Light AT Hits scored by a weapon with the Light AT trait against a Vehicle, Super-heavy Vehicle, Knight or Titan model treat their AP as 0, regardless of the weapon's base AP value. This can prevent Hits from a weapon with the Light AT trait from being allocated to Void Shields.
Armourbane Any successful Save rolls made for a Vehicle, Super-heavy Vehicle, Knight or Titan model using its Armour Save characteristic against a Hit scored by a weapon with the Armourbane trait must be re-rolled.