Detonation "Weapons with this Special Rule can only attack Vehicles and immobile Models"
A Weapon or attack with this Special Rule may only be selected during Step 2 of any Combat in the Fight Sub-Phase if the Unit making attacks I only Locked in Combat with enemy Units composed of Models with the Vehicle Type and Models with a Movement Characteristic of '-'. If a Unit Locked in Combat with any enemy Units that include any Models that do not have the Vehicle Type or a Movement Characteristic of '0' or '-' then no Model may use a Weapon or other attack that has this Special Rule.
A Weapon or other attack with this Special Rule may also be used to make attacks targeting a Model with the Building Type or a Terrain Piece that has a Toughness or Armour Characteristic.
