- Builder and Repair unit. - An elite artisan from Holy Terra, entrusted with repairing and maintaining the equipment of the Adeptus Custodes in this deployment. - Carrying years worth of experience on his back, his building and repair rites are far more effecient than common, mere Servitors. - Has no way of defending himself, and thus counts on the protection of the Companions that he accompanies. However, he compensates for being able to quickly dismantle enemy Structures and passively increasing the firepower of all nearby allied Infantry and Commanders when in range.