Halo 3: ODST


Uncommon

Find the first Medical Kiosk and heal yourself.


Uncommon

Access and download the city map to your VISR.


Uncommon

Kill 5 enemies while using VISR mode.


Uncommon

Get 10 automag headshot kills in any level.


Uncommon

Stun a vehicle with an overcharged plasma pistol and quickly kill the driver.


Uncommon

Get 5 sticky grenade kills in any level.


Uncommon

Plasma Pistol Overcharge and quickly kill 10 Brutes.


Uncommon

Get 10 Needler supercombine kills on any covenant.


Uncommon

Trade weapons with a fellow character.


Uncommon

Finish any level with at least one Skull activated.


Uncommon

Complete Tayari Plaza on Normal, Heroic, or Legendary to unlock a new Firefight character.


Uncommon

Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a new Firefight character.


Uncommon

Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a new Firefight character.


Uncommon

Complete ONI Alpha Site on Normal, Heroic, or Legendary to unlock a new Firefight mission.


Uncommon

NMPD HQ

30

Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new Firefight character.


Uncommon

Complete Kikowani Station on Normal, Heroic, or Legendary.


Uncommon

Complete Data Hive on Normal, Heroic, or Legendary to unlock a new Firefight mission.


Uncommon

Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a new Firefight mission.


Uncommon

Complete the Campaign on Normal difficulty.


Uncommon

Complete the Campaign on Heroic difficulty.


Uncommon

Complete the Campaign on Legendary to unlock a new Firefight character.


Uncommon

Find the first clue unraveling the mystery.


Uncommon

Gumshoe

10

Find the 3rd clue unraveling the mystery.


Uncommon

Find the final clue unraveling the mystery.


Uncommon

Kill all Wraiths in Uplift Reserve.


Uncommon

Get 10 Rocket kills on Kizingo Boulevard.


Uncommon

Get 10 Spartan Laser kills on ONI Alpha Site.


Uncommon

Get 15 headshot kills on NMPD HQ.


Uncommon

Kill 10 enemies with the Flamethrower on Data Hive.


Uncommon

Killing things that are new and different is bad.


Uncommon

Killing things that are new and different is good!


Uncommon

Uncommon

Uncommon

Uncommon

Uncommon

In Firefight, finish a full round without killing a single enemy.


Uncommon

Score over 200,000 points in Firefight on Crater.


Uncommon

Score over 200,000 points in Firefight on Lost Platoon.


Uncommon

Score over 200,000 points in Firefight on Rally Point.


Uncommon

Score over 200,000 points in Firefight on Security Zone.


Uncommon

Score over 200,000 points in Firefight on Alpha Site.


Uncommon

Score over 200,000 points in Firefight on Windward.


Uncommon

Score over 200,000 points in Firefight on Chasm Ten.


Uncommon

Score over 200,000 points in Firefight on Last Exit.


Uncommon

Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.


Uncommon

In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op.


Uncommon

Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion.

47
1000
2
765
1
Platform
Xbox 360