Score over 200,000 points in Firefight on Security Zone.
Unlocked: 23 Aug 2013 02:21:35
Score over 200,000 points in Firefight on Chasm Ten.
Unlocked: 06 Sep 2010 01:19:28
Score over 200,000 points in Firefight on Alpha Site.
Unlocked: 24 Aug 2010 22:55:38
In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op.
Unlocked: 02 Aug 2010 06:00:52
Score over 200,000 points in Firefight on Lost Platoon.
Unlocked: 02 Aug 2010 04:35:31
Score over 200,000 points in Firefight on Rally Point.
Unlocked: 14 Oct 2009 14:21:07
Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion.
Unlocked: 06 Oct 2009 19:34:58
Score over 200,000 points in Firefight on Windward.
Unlocked: 06 Oct 2009 17:14:26
Score over 200,000 points in Firefight on Last Exit.
Unlocked: 28 Sep 2009 15:14:01
Complete the Campaign on Heroic difficulty.
Unlocked: 26 Sep 2009 23:14:17
Complete the Campaign on Legendary to unlock a new Firefight character.
Unlocked: 26 Sep 2009 23:14:17
Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.
Unlocked: 24 Sep 2009 14:31:58
Killing things that are new and different is good, alone or with another ODST.
Unlocked: 24 Sep 2009 14:01:51
Kill 10 enemies with the Flamethrower on Data Hive.
Unlocked: 23 Sep 2009 16:00:46
In Firefight, finish a full round without killing a single enemy.
Unlocked: 23 Sep 2009 04:45:46
Kill all Wraiths in Uplift Reserve.
Unlocked: 23 Sep 2009 04:23:09
Stun a vehicle with an overcharged plasma pistol and quickly kill the driver.
Unlocked: 23 Sep 2009 04:11:54
Get 10 Rocket kills on Kizingo Boulevard.
Unlocked: 23 Sep 2009 04:10:15
Get 10 Spartan Laser kills on ONI Alpha Site.
Unlocked: 23 Sep 2009 04:06:54
Audiophile
75Find all Audio Logs, alone or with another ODST.
Unlocked: 23 Sep 2009 03:11:34
Score over 200,000 points in Firefight on Crater.
Unlocked: 22 Sep 2009 18:28:59
Plasma Pistol Overcharge and quickly kill 10 Brutes.
Unlocked: 22 Sep 2009 18:21:47
Get 10 Needler supercombine kills on any covenant.
Unlocked: 22 Sep 2009 17:59:27
Get 5 sticky grenade kills in any level.
Unlocked: 22 Sep 2009 17:26:36
Headcase
5Finish any level with at least one Skull activated.
Unlocked: 22 Sep 2009 15:52:10
Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 22 Sep 2009 06:30:17
Complete the Campaign on Normal difficulty.
Unlocked: 22 Sep 2009 06:30:17
Data Hive
50Complete Data Hive on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 22 Sep 2009 06:04:07
Killing things that are new and different is bad, alone or with another ODST.
Unlocked: 22 Sep 2009 05:41:28
Complete Kikowani Station on Normal, Heroic, or Legendary.
Unlocked: 22 Sep 2009 05:36:05
Super Sleuth
10Find the final clue unraveling the mystery, alone or with another ODST.
Unlocked: 22 Sep 2009 05:21:05
NMPD HQ
30Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 22 Sep 2009 05:17:12
Get 15 headshot kills on NMPD HQ.
Unlocked: 22 Sep 2009 05:08:50
All Ears
30Find 15 Audio Logs, alone or with another ODST.
Unlocked: 22 Sep 2009 05:00:50
Complete ONI Alpha Site on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 22 Sep 2009 04:54:56
Trade weapons with a fellow character.
Unlocked: 22 Sep 2009 04:48:23
Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 22 Sep 2009 04:35:46
Gumshoe
10Find the 3rd clue unraveling the mystery, alone or with another ODST.
Unlocked: 22 Sep 2009 04:24:58
Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 22 Sep 2009 04:03:08
Tuned In
15Find 3 Audio Logs, alone or with another ODST.
Unlocked: 22 Sep 2009 03:50:16
Listener
5Find the first Audio Log.
Unlocked: 22 Sep 2009 00:12:46
Tayari Plaza
30Complete Tayari Plaza on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 22 Sep 2009 00:08:29
Get 10 automag headshot kills in any level.
Unlocked: 21 Sep 2009 23:48:22
Find the first clue unraveling the mystery.
Unlocked: 21 Sep 2009 23:46:12
Tourist
5Access and download the city map to your VISR.
Unlocked: 21 Sep 2009 23:36:40
Kill 5 enemies while using VISR mode.
Unlocked: 21 Sep 2009 23:34:08
Heal Up
5Find the first Medical Kiosk and heal yourself.
Unlocked: 21 Sep 2009 23:30:50