- Mythic
Claimed Mythic skull.
23 October 2013 - 3 guides
- Spartan Officer
True veteran of many battles, you are a Spartan Officer.
11 November 2012 - 9 guides
- UNSC Spartan
Promoted to Sergeant. Proven in combat, you are a Spartan.
10 November 2012 - 2 guides
- Holdout
Completed the second mission of the Campaign.
- Used Car Salesman
Destroyed a vehicle that has three enemies in it in a ranked playlist or in campaign.
07 November 2012 - 7 guides
- MVP
Earned the MVP in a ranked playlist.
05 November 2012 - 3 guides
- Fear the Pink Mist
Killed 5 enemies with the needler in a ranked free for all playlist or in campaign.
05 November 2012 - 6 guides
- Maybe Next Time Buddy
Boarded the same vehicle within 10 seconds after being boarded in any free for all playlist.
05 November 2012 - 7 guides
- Mongoose Mowdown
Splattered an enemy with the mongoose in a ranked free for all playlist.
05 November 2012 - 9 guides
- Two for One
Scored a Double Kill with a single spartan laser shot in a ranked free for all playlist.
05 November 2012 - 18 guides
- Headshot Honcho
Killed 10 enemies with headshots in a ranked free for all playlist or in campaign.
05 November 2012 - 5 guides
- Steppin' Razor
Scored a Triple Kill with the sword in a ranked free for all playlist.
04 November 2012 - 7 guides
- Overkill
Killed 4 enemies within 4 seconds of one another in a ranked free for all playlist.
04 November 2012 - 9 guides
- Lee R Wilson Memorial
Scored 5 grenade sticks in any ranked free for all playlist.
04 November 2012 - 8 guides
- Triple Kill
Killed 3 enemies within 4 seconds of one another in a ranked free for all playlist.
04 November 2012 - 6 guides
- Killing Frenzy
Killed 10 enemies without dying in any ranked free for all playlist.
04 November 2012 - 9 guides
- Graduate
Graduated from basic training. Stick with it to earn your Spartan Insignia.
04 November 2012 - 4 guides
- Up Close and Personal
Killed 5 enemies by melee or assassination in a ranked free for all playlist.
11 October 2012 - 2 guides
- Landfall
Completed the first mission of the Campaign.
- Iron
Claimed Iron skull.
Unlocked offline - 3 guides
- Black Eye
Claimed Black Eye skull.
05 August 2012 - 3 guides
- The Road
Finish the third mission of the Campaign on Normal, Heroic, or Legendary.
- Assault
Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary.
- Cleansing
Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary.
- Refuge
Finish the sixth mission of the Campaign on Normal, Heroic, or Legendary.
- Last Stand
Finish the seventh mission of the Campaign on Normal, Heroic, or Legendary.
Locked - 2 guides
- The Key
Finish the eighth mission of the Campaign on Normal, Heroic, or Legendary.
- Return
Finish the final mission of the Campaign on Normal, Heroic, or Legendary.
- Campaign Complete: Normal
Finish the Campaign on Normal.
- Campaign Complete: Heroic
Finish the Campaign on Heroic (unlocks achievement for Normal, if not earned).
Locked - 2 guides
- Campaign Complete: Legendary
Finish the Campaign on Legendary (unlocks achievements for Normal and Heroic, if not earned).
Locked - 17 guides
- Tough Luck
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 3 guides
- Catch
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 5 guides
- Fog
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 4 guides
- Famine
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 5 guides
- Thunderstorm
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 3 guides
- Tilt
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Locked - 4 guides
- Too Close to the Sun
Destroy an enemy banshee with the spartan laser or missile pod in a ranked playlist or in campaign.
Locked - 4 guides
- We’re in for some Chop
Destroy an enemy vehicle with equipment in a ranked playlist or in campaign.
Locked - 3 guides
- Marathon Man
Locate and access all Terminals in the Campaign.
Locked - 9 guides
- Guerilla
Score over 15,000 points in the Campaign meta-game on the first mission.
Locked - 5 guides
- Demon
Score over 15,000 points in the Campaign meta-game on the second mission.
Locked - 4 guides
- Cavalier
Score over 15,000 points in the Campaign meta-game on the third mission.
Locked - 4 guides
- Askar
Score over 15,000 points in the Campaign meta-game on the fourth mission.
Locked - 4 guides
- Exterminator
Score over 15,000 points in the Campaign meta-game on the fifth mission.
Locked - 3 guides
- Ranger
Score over 50,000 points in the Campaign meta-game on the sixth mission.
Locked - 6 guides
- Vanguard
Score over 50,000 points in the Campaign meta-game on the seventh mission.
Locked - 6 guides
- Orpheus
Score over 15,000 points in the Campaign meta-game on the eighth mission.
Locked - 4 guides
- Reclaimer
Score over 15,000 points in the Campaign meta-game on the final mission.
Locked - 4 guides
- Zombie Repeller
On a Mythic map, killed 2 Zombies during a ranked or social match.
05 November 2012 - 3 guides
- Delicious Brains
On a Mythic map, infected 2 humans during a ranked or social match.
05 November 2012 - 3 guides
- Killtacular
On a Mythic map, got a Killtacular during a ranked or social match.
04 November 2012 - 11 guides
- … Get the Horns
On a Mythic map, got a Bulltrue medal during a ranked or social match.
04 November 2012 - 13 guides
- Post Mortem
On Orbital, got 2 Death From the Grave medals during a ranked or social match.
04 November 2012 - 10 guides
- Save This Film
On a Mythic map, got a Perfection medal during a ranked or social match.
04 November 2012 - 9 guides
- Hammer Time
On Assembly, got 5 Hammer kills during a ranked or social match.
04 November 2012 - 4 guides
- Awww, Too Bad
On a Mythic map, got a Killjoy medal during a ranked or social match.
04 November 2012 - 2 guides
- Have Fun Respawning
On a Mythic map, got an Extermination during a ranked or social match.
04 November 2012 - 6 guides
- Orbital Skull
On Orbital, found the hidden skull.
25 July 2012 - 5 guides
- Sandbox Skull
On Sandbox, found the hidden skull.
25 July 2012 - 10 guides
- Assembly Skull
On Assembly, found the hidden skull.
25 July 2012 - 4 guides
- Tank Dropper
On a Mythic map, got a kill on another player while in monitor mode.
25 July 2012 - 14 guides