The Killtacular medal in Halo 3, Halo 3: ODST, Halo: Reach, Halo 4, and Halo 5: Guardians is obtained by killing 5 opponents within 4 seconds of each other. It is available in all Multiplayer gametypes and has a Bungie difficulty rating of 8 out of 10. It is represented by a green circle with 5 silver stars. The older Killtacular medal was represented by a silver circle with 5 purple stars.