Earned a Mythic Boss Takedown in a Warzone Firefight match.
Called in a REQ that costs 5 Energy or more.
Killed a Legendary Boss in Warzone.
Changed your Service Tag in the Spartan Hub.
Changed your Emblem in the Spartan Hub.
Spectated a game.
Changed your Spartan's gear in the Spartan Hub.
Completed any Mission with 3+ Skulls active on Heroic difficulty.
Completed Mission 12.
Completed every co-op Mission on Heroic difficulty.
Completed any co-op Mission on Heroic difficulty.
Used a Ground Pound on an exterior power core in Guardians on Heroic difficulty.
Completed every Mission of the game by yourself on Legendary difficulty.
Simultaneously destroyed 2 cores in Guardians on Heroic difficulty.
Simultaneously killed two Wardens in The Breaking on Heroic difficulty.
Completed The Breaking on Legendary difficulty without the entire fireteam dying.
Operated four different vehicles at once in Mission 13 on Heroic difficulty.
Finished the 13th mission without losing the Scorpion on Legendary difficulty.
Knocked two Hunters into the ocean during the Battle of Sunaion.
Qualified for a Competitive Skill Rating.
Completed Mission 5.
Completed Mission 3.
Completed Mission 4.
Escaped the doomed Kraken by jumping onto a Phaeton piloted by a Spartan.
Completed Mission 8.
Completed Mission 9.
Completed Mission 10.
Completed Mission 11.
Completed Mission 15.
Completed a mission in Score Attack with at least 10,000 points.
Reached 50,000 points in Score Attack with a Skull multiplier of x2 or higher.
Completed a mission in Score Attack co-op, with all participants scoring at least 200,000 points.
Beat the par time of a mission in Score Attack.
Completed a mission in Score Attack with at least 500,000 points.
Successfully completed 5 Warzone Firefight matches.
Completed a Warzone Firefight match on 6 unique maps.
Killed a Grunt and smashed a grate with a Ground Pound in Battle of Sunaion.
Completed Enemy Lines without destroying a Kraken turret.
Commanded your team of Spartans in Osiris.
Completed Mission 2.
Completed every Mission of the game on Normal difficulty.
Completed Mission 14.
Completed Mission 13.
Completed Mission 7.
Completed Mission 6.
Found and claimed a Skull.
Completed Mission 1.
Completed every Mission of the game on Legendary difficulty.
Completed 5 matchmade games of Slayer.
Completed 5 matchmade games of Capture the Flag.
Completed 5 matchmade games of Breakout.
Completed 5 matchmade games of Strongholds.
Won a match on all three original Warzone maps.
Opened a Gold REQ Pack.
Completed every Mission of the game on Heroic difficulty.
Found and claimed one piece of Intel.
Completed 3 matchmade games of Warzone.
Killed an enemy that's had its armor repaired in Unconfirmed.
Completed Swords of Sanghelios co-op with both Mantises on Heroic difficulty.
Destroyed 10 walls or floors in Swords of Sanghelios.
Destroyed the Phantom at the Covenant camp in Reunion on Heroic difficulty.
Traversed the canyon without a Phaeton in Reunion on Heroic difficulty.
Kept 6 miners alive at the elevator in Evacuation on Heroic difficulty.
Teamed up in a vehicle to kill 30 enemies in Unconfirmed co-op.
Completed Glassed without any players using Smart-Link.
Found and claimed all Intel.
Completed Glassed without entering a vehicle.
Simultaneously assassinated two Elites in Blue Team co-op.
Escaped the Hunters in the lab and fought them in the hangar in Blue Team.
Helped the Elite General charge the hill in Osiris on Heroic difficulty.
Found and claimed all Skulls.
Finished Evacuation within 18:00 without dying on Heroic difficulty.
Created and saved a Custom Game.
