Kill 5 opponents in a row with the shotgun without dying.

Kill 10 opponents in a row with a sniper weapon without dying.

Kill 15 opponents in a row without dying.

Kill 20 opponents in a row without dying.

Win a slayer game with a score of 15 kills or more without dying.

Kill 4 opponents within 4 seconds of the previous kill.

Get a melee kill when holding the oddball.

Get an opponent with the Spartan Laser.

Kill 6 opponents within 4 seconds of the previous kill.

Kill 5 opponents within 4 seconds of the previous kill.

End an opponent’s killing spree - any spree.

Kill 5 opponents in a row without dying.

Kill 10 opponents in a row without dying.

Kill the opponent flag carrier in CTF.

Kill 7 opponents within 4 seconds of the previous kill.