Score over 200,000 points in Firefight on Rally Point.
Unlocked: 29 Sep 2009 15:10:10
Score over 200,000 points in Firefight on Windward.
Unlocked: 29 Sep 2009 14:25:37
Killing things that are new and different is good, alone or with another ODST.
Unlocked: 29 Sep 2009 13:12:51
Score over 200,000 points in Firefight on Last Exit.
Unlocked: 28 Sep 2009 17:13:03
Audiophile
75Find all Audio Logs, alone or with another ODST.
Unlocked: 28 Sep 2009 15:35:14
All Ears
30Find 15 Audio Logs, alone or with another ODST.
Unlocked: 28 Sep 2009 14:18:48
Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion.
Unlocked: 28 Sep 2009 11:01:50
Complete the Campaign on Legendary to unlock a new Firefight character.
Unlocked: 27 Sep 2009 19:27:01
Complete the Campaign on Heroic difficulty.
Unlocked: 27 Sep 2009 19:27:00
Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.
Unlocked: 27 Sep 2009 16:32:13
Score over 200,000 points in Firefight on Security Zone.
Unlocked: 27 Sep 2009 15:44:23
Score over 200,000 points in Firefight on Chasm Ten.
Unlocked: 27 Sep 2009 12:56:51
In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op.
Unlocked: 26 Sep 2009 22:19:25
Get 10 Rocket kills on Kizingo Boulevard.
Unlocked: 26 Sep 2009 16:22:45
Headcase
5Finish any level with at least one Skull activated.
Unlocked: 26 Sep 2009 15:01:58
Complete the Campaign on Normal difficulty.
Unlocked: 25 Sep 2009 13:21:09
Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 25 Sep 2009 13:21:08
Data Hive
50Complete Data Hive on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 25 Sep 2009 12:42:36
Kill 10 enemies with the Flamethrower on Data Hive.
Unlocked: 25 Sep 2009 12:24:06
Killing things that are new and different is bad, alone or with another ODST.
Unlocked: 25 Sep 2009 11:27:04
Complete Kikowani Station on Normal, Heroic, or Legendary.
Unlocked: 25 Sep 2009 11:17:00
Super Sleuth
10Find the final clue unraveling the mystery, alone or with another ODST.
Unlocked: 25 Sep 2009 10:49:31
Tuned In
15Find 3 Audio Logs, alone or with another ODST.
Unlocked: 25 Sep 2009 10:45:31
NMPD HQ
30Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 25 Sep 2009 09:35:18
Score over 200,000 points in Firefight on Lost Platoon.
Unlocked: 24 Sep 2009 21:12:01
Stun a vehicle with an overcharged plasma pistol and quickly kill the driver.
Unlocked: 24 Sep 2009 19:32:31
Score over 200,000 points in Firefight on Alpha Site.
Unlocked: 24 Sep 2009 19:23:16
Get 15 headshot kills on NMPD HQ.
Unlocked: 24 Sep 2009 17:54:23
Complete ONI Alpha Site on Normal, Heroic, or Legendary to unlock a new Firefight mission.
Unlocked: 24 Sep 2009 17:31:58
Get 10 Spartan Laser kills on ONI Alpha Site.
Unlocked: 24 Sep 2009 17:07:44
Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 24 Sep 2009 16:57:21
Trade weapons with a fellow character.
Unlocked: 23 Sep 2009 20:53:48
Gumshoe
10Find the 3rd clue unraveling the mystery, alone or with another ODST.
Unlocked: 23 Sep 2009 20:51:00
Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 23 Sep 2009 20:31:26
Kill all Wraiths in Uplift Reserve.
Unlocked: 23 Sep 2009 20:26:46
Listener
5Find the first Audio Log.
Unlocked: 23 Sep 2009 18:36:51
Tayari Plaza
30Complete Tayari Plaza on Normal, Heroic, or Legendary to unlock a new Firefight character.
Unlocked: 23 Sep 2009 18:23:20
Get 10 Needler supercombine kills on any covenant.
Unlocked: 23 Sep 2009 18:12:44
Find the first clue unraveling the mystery.
Unlocked: 23 Sep 2009 18:05:47
Tourist
5Access and download the city map to your VISR.
Unlocked: 23 Sep 2009 17:57:32
Kill 5 enemies while using VISR mode.
Unlocked: 23 Sep 2009 17:49:52
Score over 200,000 points in Firefight on Crater.
Unlocked: 22 Sep 2009 18:59:28
Plasma Pistol Overcharge and quickly kill 10 Brutes.
Unlocked: 22 Sep 2009 18:04:44
Get 5 sticky grenade kills in any level.
Unlocked: 22 Sep 2009 17:59:59
In Firefight, finish a full round without killing a single enemy.
Unlocked: 22 Sep 2009 17:50:22
Heal Up
5Find the first Medical Kiosk and heal yourself.
Unlocked: 22 Sep 2009 16:50:35
Get 10 automag headshot kills in any level.
Unlocked: 22 Sep 2009 16:47:39