Dwarf Artillery follows the Warhammer rules relating to Loss of Crew. If a war machine has been joined by a Master Engineer and/or Engineer, then they may act as crew. If so, they will suffer the consequences of any Misfire result.

In any given Shooting phase, a Master Engineer or an Engineer who has joined a war machine can either act as additional crew; use their Artillery Master or Artillery Specialist special rules; or fire personal weaponry. They must declare the option they will use before firing the war machine.