Halo 3: ODST


Rare

Find the first Medical Kiosk and heal yourself.


Rare

Access and download the city map to your VISR.


Rare

Kill 5 enemies while using VISR mode.


Rare

Get 10 automag headshot kills in any level.


Rare

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


Rare

Get 5 sticky grenade kills in any level.


Rare

Plasma Pistol Overcharge and quickly kill 10 Brutes.


Rare

Get 10 Needler supercombine kills on any covenant.


Rare

Trade weapons with a fellow character.


Rare

Finish any level with at least one Skull activated.


Rare

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


Rare

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


Rare

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


Rare

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


Rare

NMPD HQ

30

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


Rare

Complete Kikowani Station on Normal, Heroic, or Legendary.


Rare

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


Rare

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


Rare

Complete the Campaign on Normal difficulty.


Rare

Complete the Campaign on Heroic difficulty.


Rare

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


Rare

Find the first clue unraveling the mystery.


Rare

Gumshoe

10

Find the 3rd clue unraveling the mystery.


Rare

Find the final clue unraveling the mystery.


Rare

Kill all Wraiths in Uplift Reserve.


Rare

Get 10 Rocket kills on Kizingo Boulevard.


Rare

Get 10 Spartan Laser kills on ONI Alpha Site.


Rare

Get 15 headshot kills on NMPD HQ.


Rare

Kill 10 enemies with the Flamethrower on Data Hive.


Rare

Killing things that are new and different is bad.


Rare

Killing things that are new and different is good!


Rare

Rare

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


Rare

Score over 200,000 points in Firefight on Crater.


Rare

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


Rare

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


Rare

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


Rare

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


Rare

Score over 200,000 points in Firefight on Windward.


Rare

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


Rare

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


Rare

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


Rare

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


Rare

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

47
1000
6
922
1
Platform
Xbox 360