Strela is a special group of military stalkers. They have military equipment, but blue (like Peacekeepers, but with some differences). Their base is located somewhere in the Waiting Room. According to rumors, they are fulfilling a contract to completely clean up the Zone from hostile elements and mutants. Everyone except the military and scientists, as well as traders who agree to maintain "mutually beneficial" relations with them, are considered hostile elements of this group. The grouping is found in the modifications of the Return of the Scar, REVO-LUTION MOD and others.