Complete each Campaign Mission on Legendary - alone.
Unlocked: 12 Feb 2012 14:13:16
Complete the Campaign on Legendary difficulty.
Unlocked: 12 Feb 2012 14:13:16
Make It Rain
10Purchase an item from the Armory that requires the rank of Lt. Colonel.
Unlocked: 28 Jan 2011 22:13:57
Skunked!
10Win a game of Invasion in the 1st phase.
Unlocked: 02 Oct 2010 17:38:56
Reach the rank of Captain in the UNSC.
Unlocked: 28 Sep 2010 19:20:44
Advance any Commendation to its Silver state.
Unlocked: 22 Sep 2010 16:25:01
Finish the 9th mission on Legendary with the Scorpion intact.
Unlocked: 20 Sep 2010 18:52:18
Clear the 2nd mission without setting foot in a drivable vehicle.
Unlocked: 20 Sep 2010 11:52:19
Kill 7 Moa during the 2nd mission of the Campaign.
Unlocked: 20 Sep 2010 11:44:40
Perform an Assassination against an Elite to survive a fall that would've been fatal.
Unlocked: 19 Sep 2010 15:26:46
Earn a Killing Spree in multiplayer Matchmaking.
Unlocked: 18 Sep 2010 19:56:14
Complete a Weekly Challenge.
Unlocked: 18 Sep 2010 16:21:20
Complete the 10th mission on Normal or harder.
Unlocked: 18 Sep 2010 16:21:19
Complete the Campaign on Heroic difficulty.
Unlocked: 18 Sep 2010 16:21:19
Complete the Campaign on Normal difficulty.
Unlocked: 18 Sep 2010 16:21:19
Complete the 9th mission on Normal or harder.
Unlocked: 18 Sep 2010 15:11:56
Complete the 8th mission on Normal or harder.
Unlocked: 18 Sep 2010 14:16:03
Kill 3 of the anti-aircraft batteries during the 8th mission.
Unlocked: 18 Sep 2010 13:47:44
Complete the 7th mission on Normal or harder.
Unlocked: 18 Sep 2010 13:37:43
Complete the 6th mission on Normal or harder.
Unlocked: 18 Sep 2010 12:58:13
Destroy the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
Unlocked: 18 Sep 2010 12:40:34
To War
10Complete the 5th mission on Normal or harder.
Unlocked: 18 Sep 2010 11:16:24
Hijack a Banshee during the Reach Campaign.
Unlocked: 18 Sep 2010 11:06:18
Kill the Elite Zealot before he can escape during the 5th mission.
Unlocked: 18 Sep 2010 10:46:36
Kill 2 vehicles at once with the Target Locator during the 3rd mission.
Unlocked: 17 Sep 2010 20:21:19
Kill 10 enemies in Firefight or Campaign with a supercombine explosion.
Unlocked: 17 Sep 2010 20:10:25
Complete the 4th mission on Normal or harder.
Unlocked: 16 Sep 2010 18:28:49
Complete the 3rd mission on Normal or harder.
Unlocked: 16 Sep 2010 17:59:50
Swap Meet
10Trade weapons with an AI ally in Campaign.
Unlocked: 16 Sep 2010 17:21:50
Let a teammate spawn on you 5 times in an Invasion Matchmaking game.
Unlocked: 16 Sep 2010 14:59:44
Complete all of the Daily Challenges in a given day.
Unlocked: 16 Sep 2010 14:38:46
As an Elite, kill 5 Spartan players in Matchmaking.
Unlocked: 15 Sep 2010 21:29:48
Recommend a file to someone.
Unlocked: 15 Sep 2010 20:52:49
Score 1,000,000 points in Firefight on any map.
Unlocked: 15 Sep 2010 20:11:46
Earn a Killionaire medal in Firefight.
Unlocked: 15 Sep 2010 19:41:03
Yes, Sensei
10Earn a First Strike Medal in a Matchmaking game.
Unlocked: 15 Sep 2010 18:40:22
Score Attack
10Score 15,000 points in Score Attack Firefight Matchmaking.
Unlocked: 15 Sep 2010 18:35:48
Reach the rank of Corporal in the UNSC.
Unlocked: 14 Sep 2010 20:40:03
Using the File Browser upload a file to your File Share.
Unlocked: 14 Sep 2010 19:23:30
Purchase any item from the Armory.
Unlocked: 14 Sep 2010 19:17:24
Complete the 2nd mission on Normal or harder.
Unlocked: 14 Sep 2010 19:11:01
Kill 10 enemies in a Firefight or Campaign session with the DMR.
Unlocked: 14 Sep 2010 19:02:18
Use a Health Pack to recover life after taking body damage.
Unlocked: 14 Sep 2010 18:53:48
Perform an Assassination on an enemy.
Unlocked: 14 Sep 2010 18:48:19
Score 200,000 points in Firefight on any map.
Unlocked: 14 Sep 2010 17:56:15
Complete a Firefight set on Legendary without dying.
Unlocked: 14 Sep 2010 17:17:23
Firestarter
10Score 50,000 points in Firefight on any map.
Unlocked: 14 Sep 2010 17:16:21
Lucky Me
25Earn a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
Unlocked: 14 Sep 2010 17:10:24
Kill 10 Enemies in a Firefight or Campaign session with the M6G pistol.
Unlocked: 14 Sep 2010 16:52:06
Noble 1: Blow up the research facility in a matchmade Invasion game on Breakpoint.
Unlocked: 14 Feb 2011 22:49:48
Noble 1: Kill a player at long range with the DMR in a matchmade Slayer game.
Unlocked: 14 Feb 2011 22:11:09
Noble 1: Earn a Double Kill from the Grave in multiplayer Matchmaking.
Unlocked: 14 Feb 2011 22:01:56
Noble 1: Collect all of the flags in a matchmade Stockpile game.
Unlocked: 14 Feb 2011 21:43:31
Both Barrels
50Noble 1: Earn a Double Kill with the shotgun in multiplayer Matchmaking.
Unlocked: 30 Jan 2011 00:32:04
Noble 1: Earn a kill in a matchmade Rocket Race game.
Unlocked: 29 Jan 2011 23:59:42
Noble 1: Destroy a vehicle using Armor Lock in a matchmade game.
Unlocked: 29 Jan 2011 23:41:22
Defiant: Assassinate a player that just exited Armor-Lock in a matchmade game.
Unlocked: 25 Aug 2012 12:46:43
All Alone
10Defiant: Be the last surviving uninfected player in a matchmade Infection game.
Unlocked: 24 Aug 2012 21:15:15
Defiant: Prevent the attacking team from touching the flag in a matchmade 1-Flag CTF game.
Unlocked: 24 Aug 2012 20:12:02
Defiant: Kill 3 players with the Oddball in a matchmade Oddball game.
Unlocked: 16 Mar 2011 19:19:50
Defiant: Successfully return two flags in a matchmade CTF game.
Unlocked: 16 Mar 2011 19:16:07
Defiant: Capture two flags from an enemy capture zone in a matchmade Stockpile game.
Unlocked: 16 Mar 2011 19:09:02
Anniversary: Infect 3 players in a single round in a matchmade Infection game.
Unlocked: 01 Sep 2012 13:25:22
Dive Bomber
50Anniversary: Perform a Beat Down on an enemy player while using the Jetpack during a matchmade game.
Unlocked: 25 Aug 2012 11:22:55
Anniversary: Capture 10 skulls at once in a matchmade Headhunter game.
Unlocked: 25 Aug 2012 11:15:18
Anniversary: Run over 5 people with a vehicle in a matchmade game.
Unlocked: 24 Aug 2012 18:22:20
Anniversary: Stick and kill the flag carrier with a Plasma Grenade in a matchmade game.
Unlocked: 24 Aug 2012 18:05:51
Top Shot
50Anniversary: Get 3 headshot kills in a row in a matchmade game.
Unlocked: 24 Aug 2012 17:56:39
Anniversary: Kill an enemy with their own Plasma Grenade that is stuck to you in a matchmade game.
Unlocked: 24 Aug 2012 17:55:04