'''Penitent Engines''' are used by the [[Ecclesiarchy]] as a form of punishment for repenting [[heretic]]s. They are used by the [[Adepta Sororitas]] like [[Space Marine]]s use [[Dreadnought]]s. Similar to Dreadnoughts, the pilot is hard-wired into the frame of the Penitent Engine. They will charge into combat in a frenzied state, made to recognise that only in death can he or she find forgiveness for his or her crimes.