In Killzone 3, in singleplayer, shoot and kill 3 Helghast using the VC8 Shotgun Pistol without reloading or switching weapons. In Chapter 2 "Evacuation Orders" -- Dead End, you can pick up a Shotgun Pistol from one of the Helghast that drop it during the fight in an open area, where you also rendezvous with some ISA The above excerpt was extracted from "Killzone 3 Trophy Guide" at PS3Trophies.Org.