The [[Imperium]] puts the Ogryns' qualities to good use: their strength and lack of intellectual complexity make them ideal warriors for the [[Imperial Guard]]. The concentration of the Ogryns' brutal power creates formidable assault forces. Once introduced into the [[Imperial Cult]], Ogryns develop an unshakable and almost childlike faith in the [[Emperor]], seeing Him as watching over their every action on the battlefield.{{Fn|4b}} Each order they receive is viewed as having worked its way down the hierarchy from the Emperor, and is followed without question and to the best of their ability.{{Fn|4b}} The most intelligent individuals among Ogryns undergo an augmentative chemical process called Biochemical Ogryn Neural Enhancement (BONE), which increases their intelligence further and makes them ideal as sergeants (BONEheads{{Fn|33}}, or ''Bone'eads'') of Ogryn squads.{{Fn|4c}} Sometimes the bone 'ead implant doesn't take and leaving , usually resulting in the Ogryn being less intelligent than beforethe procedure. In these cases they can simply return to their old duties.{{Fn|35a}}