Anniversary: Earned 3 headshots in a row in a matchmade game.
Noble 1: Destroyed a vehicle using Armor Lock in a matchmade game.
Purchased an item from the Armory that required the rank of Lt. Colonel.
Noble 1: Earned a Double Kill with the shotgun in multiplayer Matchmaking.
Won a game of Invasion in the 1st phase.
Scored 15,000 points in Score Attack Firefight Matchmaking.
Scored 200,000 points in a Firefight game.
Scored 1,000,000 points in a Firefight game.
Completed a Firefight set on Legendary without dying.
Earned a Killionaire medal in Firefight.
Earned a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
Killed 2 vehicles at once with the Target Locator during the 3rd mission.
Reached the rank of Captain in the UNSC.
Used the File Browser to upload a file to your File Share.
Completed all of the Daily Challenges in a given day.
Recommended a file to someone.
Advanced a Commendation to a Silver state.
Completed a Weekly Challenge.
Let a teammate spawn on you 5 times in an Invasion Matchmaking game.
Earned a Killing Spree in multiplayer Matchmaking.
As an Elite, killed 5 Spartan players in Matchmaking.
Earned a First Strike Medal in a Matchmaking game.
Noble 1: Your team blew up the research facility in a matchmade Invasion game on Breakpoint.
Completed the 8th mission on Normal or harder.
Killed the Elite Zealot before he escaped during the 5th mission.
Completed the 5th mission on Normal or harder.
Destroyed the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
Completed the 6th mission on Normal or harder.
Defiant: Killed 3 players with the Oddball in a matchmade Oddball game.
Completed the 7th mission on Normal or harder.
Reached the rank of Corporal in the UNSC.
Killed 3 of the anti-aircraft batteries during the 8th mission.
Hijacked a Banshee during the Reach Campaign.
Finished the 9th mission on Legendary with the Scorpion intact.
Performed an Assassination on an enemy.
Completed the 9th mission on Normal or harder.
Performed an Assassination against an Elite to survive a fall that would've been fatal.
Completed the 10th mission on Normal or harder.
Completed the Campaign on Heroic difficulty.
Completed the Campaign on Normal difficulty.
Noble 1: Earned a Double Kill from the Grave in multiplayer Matchmaking.
Defiant: Returned two flags in a matchmade CTF game.
Scored 50,000 points in a Firefight game.
Completed the 4th mission on Normal or harder.
Completed the 3rd mission on Normal or harder.
Noble 1: Earned a kill in a matchmade Rocket Race game.
Anniversary: Killed an enemy with their own grenade that was stuck to you in a matchmade game.
Defiant: Prevented the attacking team from touching the flag in a matchmade 1-Flag CTF game.
Defiant: Assassinated a player that just exited Armor-Lock in a matchmade game.
Defiant: Was the last surviving uninfected player in a matchmade Infection game.
Defiant: Captured two flags from an enemy capture zone in a matchmade Stockpile game.
Anniversary: Infected 3 players in a single round in a matchmade Infection game.
Anniversary: Killed the flag carrier with a Plasma Grenade in a matchmade game.
Anniversary: Performed a Beat Down on an enemy while using the Jetpack during a matchmade game.
Anniversary: Ran over 5 people with a vehicle in a matchmade game.
Anniversary: Captured 10 skulls at once in a matchmade Headhunter game.
Completed every mission in Halo: Reach alone, on Legendary.
Killed 10 enemies in Firefight or Campaign with a supercombine explosion.
Noble 1: Your team collected all of the flags in a matchmade Stockpile game.
Purchased an item from the Armory.
Used a Health Pack to replenish life after taking body damage.
Killed 10 enemies in a Firefight or Campaign session with the M6G pistol.
Cleared the 2nd mission without setting foot in a drivable vehicle.
Killed 7 Moa during the 2nd mission of the Campaign.
Killed 10 enemies in a Firefight or Campaign session with the DMR.
Completed the 2nd mission on Normal or harder.
Noble 1: Killed a player at long range with the DMR in a matchmade Slayer game.
Traded weapons with an AI ally in Campaign.
Completed the Campaign on Legendary difficulty.
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