Score over 200,000 points in Firefight on Security Zone.
Unlocked: 23 Nov 2010 02:34:37
Score over 200,000 points in Firefight on Chasm Ten.
Unlocked: 23 Nov 2010 00:21:38
In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op.
Unlocked: 22 Nov 2010 00:56:05
Score over 200,000 points in Firefight on Alpha Site.
Unlocked: 20 Nov 2010 20:07:02
Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion.
Unlocked: 20 Nov 2010 17:42:15
Headcase
5Finish any level with at least one Skull activated.
Unlocked: 20 Nov 2010 17:42:14
Score over 200,000 points in Firefight on Rally Point.
Unlocked: 19 Nov 2010 23:02:10
Score over 200,000 points in Firefight on Windward.
Unlocked: 13 Nov 2010 07:50:28
Score over 200,000 points in Firefight on Last Exit.
Unlocked: 06 Nov 2010 06:05:06
Score over 200,000 points in Firefight on Crater.
Unlocked: 06 Nov 2010 04:45:19
Score over 200,000 points in Firefight on Lost Platoon.
Unlocked: 06 Nov 2010 03:56:52
Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.
Unlocked: 26 May 2010 10:03:38
In Firefight, finish a full round without killing a single enemy.
Unlocked: 20 Apr 2010 06:31:04
Stun a vehicle with an overcharged plasma pistol and quickly kill the driver.
Unlocked: 11 Apr 2010 22:24:12
Plasma Pistol Overcharge and quickly kill 10 Brutes.
Unlocked: 11 Apr 2010 22:15:44
Get 10 Spartan Laser kills on ONI Alpha Site.
Unlocked: 11 Apr 2010 22:05:51
Kill 10 enemies with the Flamethrower on Data Hive.
Unlocked: 11 Apr 2010 22:00:18
Kill all Wraiths in Uplift Reserve.
Unlocked: 11 Apr 2010 21:48:16
Get 10 Rocket kills on Kizingo Boulevard.
Unlocked: 11 Apr 2010 21:29:05
Audiophile
75Find all Audio Logs, alone or with another ODST.
Unlocked: 11 Apr 2010 02:25:40
All Ears
30Find 15 Audio Logs, alone or with another ODST.
Unlocked: 11 Apr 2010 01:41:36
Killing things that are new and different is good, alone or with another ODST.
Unlocked: 11 Apr 2010 01:15:13
Get 10 Needler supercombine kills on any covenant.
Unlocked: 11 Apr 2010 00:33:33
Get 5 sticky grenade kills in any level.
Unlocked: 11 Apr 2010 00:28:41
Get 10 automag headshot kills in any level.
Unlocked: 11 Apr 2010 00:08:36
Complete the Campaign on Legendary to unlock a new Firefight character.
Unlocked: 10 Apr 2010 07:18:12
Complete the Campaign on Heroic difficulty.
Unlocked: 10 Apr 2010 07:18:11
Complete the Campaign on Normal difficulty.
Unlocked: 10 Apr 2010 07:18:10
Complete Kikowani Station on Normal, Heroic, or Legendary.
Unlocked: 10 Apr 2010 07:18:09
NMPD HQ
30Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 10 Apr 2010 06:34:04
Get 15 headshot kills on NMPD HQ.
Unlocked: 10 Apr 2010 06:20:34
Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 10 Apr 2010 06:03:30
Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 10 Apr 2010 05:04:56
Data Hive
50Complete Data Hive on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 10 Apr 2010 03:57:39
Killing things that are new and different is bad, alone or with another ODST.
Unlocked: 10 Apr 2010 03:20:49
Complete ONI Alpha Site on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 08 Apr 2010 09:06:01
Super Sleuth
10Find the final clue unraveling the mystery, alone or with another ODST.
Unlocked: 08 Apr 2010 08:12:53
Tuned In
15Find 3 Audio Logs, alone or with another ODST.
Unlocked: 02 Apr 2010 02:52:37
Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 02 Apr 2010 02:46:59
Gumshoe
10Find the 3rd clue unraveling the mystery, alone or with another ODST.
Unlocked: 02 Apr 2010 01:30:40
Listener
5Find the first Audio Log.
Unlocked: 02 Apr 2010 01:13:03
Tayari Plaza
30Complete Tayari Plaza on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 01 Apr 2010 05:11:50
Trade weapons with a fellow character.
Unlocked: 01 Apr 2010 04:19:26
Find the first clue unraveling the mystery.
Unlocked: 01 Apr 2010 04:15:37
Tourist
5Access and download the city map to your VISR.
Unlocked: 01 Apr 2010 03:59:09
Kill 5 enemies while using VISR mode.
Unlocked: 01 Apr 2010 03:51:42
Heal Up
5Find the first Medical Kiosk and heal yourself.
Unlocked: 01 Apr 2010 03:42:45