Campaign Complete: Normal
Completed the Campaign on Normal difficulty.
100 
Campaign Complete: Heroic
Completed the Campaign on Heroic difficulty.
100 
Campaign Complete: Legendary
Completed Legendary and unlocked the Dare character in Firefight.
100 
Audiophile
Found all Audio Logs, alone or with another ODST.
75 
Data Hive
Completed Data Hive and unlocked the Chasm Ten Firefight mission.
50 
Coastal Highway
Completed Coastal Highway and unlocked the Last Exit Firefight mission.
50 
Tayari Plaza
Completed Tayari Plaza and unlocked the Buck character in Firefight.
30 
Uplift Reserve
Completed Uplift Reserve and unlocked the Dutch character in Firefight.
30 
Kizingo Boulevard
Completed Kizingo Blvd. and unlocked the Mickey character in Firefight.
30 
ONI Alpha Site
Completed ONI Alpha Site and unlocked the Alpha Site Firefight mission.
30 
NMPD HQ
Completed NMPD HQ and unlocked the Romeo character in Firefight.
30 
Kikowani Station
Completed Kikowani Station on Normal, Heroic, or Legendary.
30 
All Ears
Found 15 Audio Logs, alone or with another ODST.
30 
Vidmaster Challenge: Classic
Finished any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.
25 
Vidmaster Challenge: Endure
In Firefight, on any mission, passed the 4th Set on 4-player Heroic LIVE co-op.
25 
Vidmaster Challenge: Déjà Vu
Completed Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion.
25 
Good Samaritan
Killed no Engineers in the city at night during entire campaign, alone or with another ODST.
20 
Tuned In
Found 3 Audio Logs, alone or with another ODST.
15 
Firefight: Lost Platoon
Scored over 200,000 points in Firefight on Lost Platoon.
10 
Firefight: Rally Point
Scored over 200,000 points in Firefight on Rally Point.
10 
Firefight: Security Zone
Scored over 200,000 points in Firefight on Security Zone.
10 
Firefight: Alpha Site
Scored over 200,000 points in Firefight on Alpha Site.
10 
Firefight: Windward
Scored over 200,000 points in Firefight on Windward.
10 
Firefight: Chasm Ten
Scored over 200,000 points in Firefight on Chasm Ten.
10 
Firefight: Last Exit
Scored over 200,000 points in Firefight on Last Exit.
10 
Junior Detective
Found the first clue unraveling the mystery.
10 
Gumshoe
Found the 3rd clue unraveling the mystery, alone or with another ODST.
10 
Super Sleuth
Found the final clue unraveling the mystery, alone or with another ODST.
10 
Be Like Marty
In Firefight, finished a full round without killing a single enemy.
10 
Firefight: Crater
Scored over 200,000 points in Firefight on Crater.
10 
Heal Up
Found the first Medical Kiosk and healed yourself.
5 
Tourist
Accessed and downloaded the city map to your VISR.
5 
Dark Times
Killed 5 enemies while using VISR mode.
5 
Boom, Headshot
Got 10 automag headshot kills in any level.
5 
Stunning!
Stunned a vehicle with an overcharged plasma pistol and quickly killed the driver.
5 
Ewww, Sticky
Got 5 sticky grenade kills in any level.
5 
My Clothes!
Plasma Pistol Overcharged and quickly killed 10 Brutes.
5 
Pink and Deadly
Got 10 Needler supercombine kills on any covenant.
5 
Trading Down
Traded weapons with a fellow character.
5 
Headcase
Finished any level with at least one Skull activated.
5 
Wraith Killer
Killed all Wraiths in Uplift Reserve.
5 
Both Tubes
Got 10 Rocket kills on Kizingo Boulevard.
5 
Laser Blaster
Got 10 Spartan Laser kills on ONI Alpha Site.
5 
Dome Inspector
Got 15 headshot kills on NMPD HQ.
5 
I Like Fire
Killed 10 enemies with the Flamethrower on Data Hive.
5 
Naughty Naughty
Killed 10 Engineers in the city at night, alone or with another ODST.
5 
Listener
Found the first Audio Log.
5