Skunked!
10Win a game of Invasion in the 1st phase.
Unlocked: 27 Dec 2013 03:08:09
Complete each Campaign Mission on Legendary - alone.
Unlocked: 24 Dec 2013 05:20:58
Complete the Campaign on Legendary difficulty.
Unlocked: 24 Dec 2013 05:20:58
Complete the Campaign on Heroic difficulty.
Unlocked: 24 Dec 2013 05:20:58
Finish the 9th mission on Legendary with the Scorpion intact.
Unlocked: 24 Dec 2013 03:51:16
Kill 3 of the anti-aircraft batteries during the 8th mission.
Unlocked: 26 Jun 2012 18:18:42
Hijack a Banshee during the Reach Campaign.
Unlocked: 26 Jun 2012 18:00:13
Let a teammate spawn on you 5 times in an Invasion Matchmaking game.
Unlocked: 26 Jun 2012 17:43:19
Perform an Assassination against an Elite to survive a fall that would've been fatal.
Unlocked: 26 Jun 2012 05:57:59
Complete the 10th mission on Normal or harder.
Unlocked: 26 Jun 2012 05:27:07
Complete the Campaign on Normal difficulty.
Unlocked: 26 Jun 2012 05:27:03
Complete the 9th mission on Normal or harder.
Unlocked: 26 Jun 2012 04:52:27
Complete the 8th mission on Normal or harder.
Unlocked: 26 Jun 2012 04:22:53
Complete the 7th mission on Normal or harder.
Unlocked: 26 Jun 2012 03:54:24
Destroy the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
Unlocked: 26 Jun 2012 03:25:11
Complete the 6th mission on Normal or harder.
Unlocked: 26 Jun 2012 03:13:32
To War
10Complete the 5th mission on Normal or harder.
Unlocked: 26 Jun 2012 02:15:43
Kill the Elite Zealot before he can escape during the 5th mission.
Unlocked: 26 Jun 2012 01:57:16
Complete the 4th mission on Normal or harder.
Unlocked: 26 Jun 2012 01:36:53
Earn a Killing Spree in multiplayer Matchmaking.
Unlocked: 18 Jun 2012 19:07:13
Complete a Weekly Challenge.
Unlocked: 09 Feb 2012 22:09:56
Make It Rain
10Purchase an item from the Armory that requires the rank of Lt. Colonel.
Unlocked: 09 Feb 2012 21:33:37
Reach the rank of Captain in the UNSC.
Unlocked: 09 Feb 2012 21:32:31
Complete the 3rd mission on Normal or harder.
Unlocked: 30 Jan 2012 03:14:41
Kill 2 vehicles at once with the Target Locator during the 3rd mission.
Unlocked: 30 Jan 2012 02:42:08
Clear the 2nd mission without setting foot in a drivable vehicle.
Unlocked: 30 Jan 2012 02:32:29
Swap Meet
10Trade weapons with an AI ally in Campaign.
Unlocked: 30 Jan 2012 02:30:44
Kill 7 Moa during the 2nd mission of the Campaign.
Unlocked: 30 Jan 2012 02:28:08
Advance any Commendation to its Silver state.
Unlocked: 27 Jan 2012 23:19:10
Complete all of the Daily Challenges in a given day.
Unlocked: 27 Jan 2012 10:07:19
As an Elite, kill 5 Spartan players in Matchmaking.
Unlocked: 26 Jan 2012 04:54:45
Yes, Sensei
10Earn a First Strike Medal in a Matchmaking game.
Unlocked: 26 Jan 2012 04:52:17
Score Attack
10Score 15,000 points in Score Attack Firefight Matchmaking.
Unlocked: 26 Jan 2012 04:10:48
Reach the rank of Corporal in the UNSC.
Unlocked: 25 Jan 2012 08:48:35
Purchase any item from the Armory.
Unlocked: 25 Jan 2012 06:48:25
Using the File Browser upload a file to your File Share.
Unlocked: 24 Jan 2012 08:12:51
Kill 10 enemies in Firefight or Campaign with a supercombine explosion.
Unlocked: 24 Jan 2012 08:09:46
Score 1,000,000 points in Firefight on any map.
Unlocked: 24 Jan 2012 07:49:31
Complete a Firefight set on Legendary without dying.
Unlocked: 24 Jan 2012 07:36:56
Earn a Killionaire medal in Firefight.
Unlocked: 24 Jan 2012 07:35:41
Score 200,000 points in Firefight on any map.
Unlocked: 24 Jan 2012 07:35:01
Lucky Me
25Earn a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
Unlocked: 24 Jan 2012 07:32:36
Firestarter
10Score 50,000 points in Firefight on any map.
Unlocked: 24 Jan 2012 07:29:41
Complete the 2nd mission on Normal or harder.
Unlocked: 24 Jan 2012 06:52:15
Kill 10 enemies in a Firefight or Campaign session with the DMR.
Unlocked: 24 Jan 2012 06:38:26
Kill 10 Enemies in a Firefight or Campaign session with the M6G pistol.
Unlocked: 24 Jan 2012 06:30:00
Recommend a file to someone.
Unlocked: 24 Jan 2012 01:55:45
Perform an Assassination on an enemy.
Unlocked: 24 Jan 2012 01:51:45
Use a Health Pack to recover life after taking body damage.
Unlocked: 24 Jan 2012 01:51:24
Noble 1: Blow up the research facility in a matchmade Invasion game on Breakpoint.
Unlocked: 26 Jun 2012 20:41:11
Noble 1: Collect all of the flags in a matchmade Stockpile game.
Unlocked: 21 Jun 2012 23:54:07
Noble 1: Earn a kill in a matchmade Rocket Race game.
Unlocked: 18 Jun 2012 21:49:55
Noble 1: Earn a Double Kill from the Grave in multiplayer Matchmaking.
Unlocked: 18 Jun 2012 19:42:19
Both Barrels
50Noble 1: Earn a Double Kill with the shotgun in multiplayer Matchmaking.
Unlocked: 18 Jun 2012 19:39:54
Noble 1: Destroy a vehicle using Armor Lock in a matchmade game.
Unlocked: 26 Jan 2012 00:07:36
Noble 1: Kill a player at long range with the DMR in a matchmade Slayer game.
Unlocked: 25 Jan 2012 19:49:37
Defiant: Prevent the attacking team from touching the flag in a matchmade 1-Flag CTF game.
Unlocked: 22 Jun 2012 01:49:42
All Alone
10Defiant: Be the last surviving uninfected player in a matchmade Infection game.
Unlocked: 22 Jun 2012 00:22:22
Defiant: Successfully return two flags in a matchmade CTF game.
Unlocked: 18 Jun 2012 21:38:15
Defiant: Capture two flags from an enemy capture zone in a matchmade Stockpile game.
Unlocked: 18 Jun 2012 21:36:03
Defiant: Kill 3 players with the Oddball in a matchmade Oddball game.
Unlocked: 18 Jun 2012 21:23:35
Defiant: Assassinate a player that just exited Armor-Lock in a matchmade game.
Unlocked: 18 Jun 2012 20:52:33
Anniversary: Stick and kill the flag carrier with a Plasma Grenade in a matchmade game.
Unlocked: 22 Jun 2012 00:38:29
Top Shot
50Anniversary: Get 3 headshot kills in a row in a matchmade game.
Unlocked: 18 Jun 2012 20:33:22
Anniversary: Capture 10 skulls at once in a matchmade Headhunter game.
Unlocked: 18 Jun 2012 20:30:24
Dive Bomber
50Anniversary: Perform a Beat Down on an enemy player while using the Jetpack during a matchmade game.
Unlocked: 18 Jun 2012 19:44:47
Anniversary: Kill an enemy with their own Plasma Grenade that is stuck to you in a matchmade game.
Unlocked: 18 Jun 2012 19:36:53
Anniversary: Infect 3 players in a single round in a matchmade Infection game.
Unlocked: 18 Jun 2012 19:27:18
Anniversary: Run over 5 people with a vehicle in a matchmade game.
Unlocked: 18 Jun 2012 19:18:13