The Geth Sentinels or Guards, is a group of Geth much like Legion, who each could operate independantly. Each operating in recovering data or sabotaging through tech. The Sentinels did not worship the Reapers thus calling them "Misguided" and that organic life is not needed to be eradicated. Sentinals were modified through the expertise of their own kind, technology experts. Their lenses were changed to reduce fog with a special lense, and changing wiring and materials with "frictionless materials". Element Zero is present in their weapons, thus enhances damage and weapons force. The armor is increased in health from little to medium from the reflective armor with an enhanced platinum coating underneath. However the wires used are not upgraded at all so the Sentinels occasionally lag and glitch during major data transfer.