sentinels are robots with the physical appearance of the prehistoric animal called “Velociraptor” or also simply "Raptors" Their body structure is quite similar to the Velociraptor's body the Sentinels also seem to have a head that contains a projector or camera flasher in their forehead that can boot-loop any drone only when flashed on the drones face this makes them freeze and be motionless for a long period of time. There main weapon are there boot-loop cameras and mouth