Sentinel Guard Sodalities are deployed to protect emissaries on hazardous ground and hold defensive positions against the most grievous onslaught. They are outfitted with energy field-reinforced Praesidium Shields – a precursor to the storm shields of the Space Marines – capable of resisting the heaviest weapons fire. In spite of this protective role, the physical prowess of each Custodian, and the peerless wargear with which they are outfitted, affords the Sentinel Guard the mobility to perform far more aggressive functions in open battle, where their resilience makes them formidable