| Assassin! |
Hit and kill an opponent with a melee attack from behind. |
| Beat Down! |
Hit and kill an opponent with a melee attack. |
| Bomb Planted! |
Plant the bomb in a Assault Gametype. |
| Bulltrue! |
Kill an opponent who is in the act of a sword lunge. |
| Death from the Grave! |
Kill an opponent after you have died. |
| Double Kill! |
Kill 2 opponents within 4 seconds of each other. |
| Extermination! |
Get an overkill on the opposing team, wiping out all of the members. |
| Flag Kill! |
Get a melee kill with the flag in a CTF gametype. |
| Flag Score! |
Capture the opposing team's flag in a CTF gametype. |
| Grenade Stick! |
Kill an opponent by sticking him/her with a Plasma Grenade or a Spike Grenade. |
| Hail to the King! |
Kill 5 consecutive opponents in a single life from inside the hill before it moves in a King of the Hill gametype. |
| Hell's Janitor! |
Kill 10 zombies in a row as a human without dying in an Infection gametype. |
| Highjacker! |
Board an enemy ground vehicle. |
| Incineration! |
Kill an opponent by using the Flamethrower. |
| Infection Spree! |
Kill 5 humans in a row as a zombie without dying in an Infection gametype. |
| Invincible! |
Kill 30 opponents in a row without dying. |
| Juggernaut Spree! |
Kill 5 consecutive opponents in a single run as the Juggernaut in a Juggernaut gametype. |
| Killapocalypse! |
Kill 9 opponents within 4 seconds of each other. |
| Killed Bomb Carrier! |
Kill the opposing bomb carrier in a Assault Gamtype. |
| Killed Flag Carrier! |
Kill the opposing flag carrier in a CTF gametype. |
| Killed Juggernaut! |
Kill the Juggernaut in a Juggernaut gametype. |
| Killed VIP! |
Kill the opposing VIP in a VIP Gametype. |
| Killimanjaro! |
Kill 7 opponents within 4 seconds of each other. |
| Killing Frenzy! |
Kill 10 opponents in a row without dying. |
| Killing Spree! |
Kill 5 opponents in a row without dying. |
| Killionaire! |
Kill 10 opponents within 4 seconds of each other. |
| Killjoy! |
End an opponent's killing spree—any spree. |
| Killtacular! |
Kill 5 opponents within 4 seconds of each other. |
| Killtastrophe! |
Kill 8 opponents within 4 seconds of each other. |
| Killtrocity! |
Kill 6 opponents within 4 seconds of each other. |
| Laser Kill! |
Kill an opponent by using the Spartan Laser. |
| Last Man Standing! |
Be the last human of the game in an Infection gametype. |
| Linktacular! |
Play in a matchmade game comprised of all Bungie.net users. (Secret Medal) |
| Mmmm Brains! |
Kill 10 humans in a row as a zombie without dying in an Infection gametype. |
| Oddball Kill! |
Get a melee kill when holding the ball in a Oddball gametype. |
| Open Season! |
Gun down 10 opponents with a Shotgun in a row without dying. |
| Overkill! |
Kill 4 opponents within 4 seconds of each other. |
| Perfection! |
Win a slayer game with 15+ kills without dying. |
| Rampage! |
Kill 20 opponents in a row without dying. |
| Running Riot |
Kill 15 opponents in a row without dying. |
| Sharpshooter! |
Snipe 10 opponents in a row without dying. |
| Shotgun Spree! |
Gun down 5 opponents with a Shotgun in a row without dying. |
| Skyjacker! |
Board an enemy aircraft. |
| Slice 'N Dice! |
Cut down 10 opponents with the Plasma Sword in a row without dying. |
| Sniper Kill! |
Kill an opponent by using a sniping weapon. |
| Sniper Spree! |
Snipe 5 opponents in a row without dying. |
| Splatter Spree! |
Splatter 5 opponents in a row without dying. |
| Splatter! |
Hit and kill an opponent with a vehicle. |
| Steaktacular! |
Beat the opposing team by over 20 kills; (Luke owes you a steak dinner) (Secret Medal) |
| Sword Spree! |
Cut down 5 opponents with the Plasma Sword in a row without dying. |
| Triple Kill! |
Kill 3 opponents within 4 seconds of each other. |
| Unstoppable! |
Kill 10 consecutive opponents in a single run as the Juggernaut in a Juggernaut gametype. |
| Untouchable! |
Kill 25 opponents in a row without dying. |
| Vehicular Manslaughter! |
Splatter 10 opponents in a row without dying. |
| Wheelman! |
Be the driver of a vehicle when a passenger kills an opponent. |
| Zombie Killing Spree! |
Kill 5 zombies in a row as a human without dying in an Infection gametype. |
