Detonation
(Rule)Description: A weapon with this special rule may only be used to attack models of the Vehicle, Dreadnought or Automata Unit Types, any model with a Movement Characteristic of 0 or ‘-’, or Buildings or Fortifications. Furthermore, a model that is chosen to attack with a weapon with this special rule during the Assault phase may only make a single attack in the Fight sub-phase, regardless of its Attacks Characteristic and any bonus attacks from Charging or other special rules.