| Heal Up | Find the first Medical Kiosk and heal yourself. | 5  |
| Tourist | Access and download the city map to your VISR. | 5 |
| Dark Times | Kill 5 enemies while using VISR mode. | 5 |
| Boom, Headshot | Get 10 automag headshot kills in any level. | 5 |
| Stunning! | Stun a vehicle with an overcharged plasma pistol and quickly kill the driver | 5 |
| Ewww, Sticky | Get 5 sticky grenade kills in any level. | 5 |
| My Clothes! | Plasma Pistol Overcharge and qucikly kill 10 Brutes. | 5 |
| Pink and Deadly | Get 10 Needler supercombine kills on any covenant | 5 |
| Trading Down | Trade weapons with a fellow character | 5 |
| Headcase | Finish any level with at least one Skull activated. | 5 |
| Tayari Plaza | Complete Tayari Plaze on Normal, Heroic, or Legendary to unlock a new Firefight character. | 30 |
| Uplift Reserve | Complete Uplift Reserve on Normal, Heroic, or Legendary to unlock a new Firefight character. | 30 |
| Kizingo Boulevard | Complete Kizingo Blvd. on Normal, Heroic, or Legendary to unlock a new Firefighter character. | 30 |
| ONI Alpha Site | Complete ONI Slpha Site on Normal, Heroic, or Legendary to unlock a new Firefighter mission. | 30 |
| NMPD HQ | Complete NMPD HQ on Normal, Heroic, or Legendary to unlock a new Firefight mission. | 30 |
| Kikiwani Station | Complete Kikowani Station on Normal, Heroic, or Legendary. | 30 |
| Data Hive | Complete Data Hive on Normal, Heroic, or Legendary to unlock a new Firefighter mission. | 50 |
| Coastal Highway | Complete Coastal Highway on Normal, Heroic, or Legendary to unlock a new Firefighter mission. | 50 |
| Campaign Complete: Normal | Complete the Campaign on Normal difficulty. | 100 |
| Campaign Complete: Heroic | Complete the Campaign on Heroic difficulty. | 100 |
| Campaign Complete: Legendary | Complete the Campaign on Legendary to unlock a new Firefight character. | 100 |
| Junior Detective | Find the first clue unraveling the mystery. | 10 |
| Gumshoe | Find the 3rd clue unraveling the mystery, alone or with another ODST. | 10 |
| Super Sleuth | Find the final clue unraveling the mystery, alone or with another ODST. | 10 |
| Wraith Killer | Kill are Wraiths in Uplift Reserve | 5 |
| Both Tubes | Get 10 Rocket kills on Kizingo Boulevard. | 5 |
| Laser Blaster | Get 10 Spartan Laser kills on ONI Alpha Site. | 5 |
| Dome Inspector | Get 15 headshot kills on NMPD HQ | 5 |
| I Like Fire | Kill 10 enemies with the Flamethrower on Data Hive. | 5 |
| Good Samaritan | Killing things that are new and different is bad, alone or with another ODST. | 20 |
| Naughty Naughty | Killing things that are new and different is good, alone or with another ODST. | 5 |
| Listener | Find the first Audio Log. | 5 |
| Tuned In | Find 3 Audio Logs, alone or with another ODST. | 15 |
| All Ears | Find 15 Audio Logs, alone or with another ODST. | 30 |
| Audiophile | Find all Audio Logs, alone or with another ODST. | 75 |
| Be Like Marty | In Firefight, finish a full round without lilling a single enemy. | 10 |
| Firefight: Crater | Score over 200,000 points in Firefight on Crater. | 10 |
| Firefight: Lost Platoon | Score over 200,000 points in Firefight on Lost Platoon. | 10 |
| Firefight: Rally Point | Score over 200,000 points in Firefight on Rally Point. | 10 |
| Firefight: Security Zone | Score over 200,000 points in Firefight on Security Zone. | 10 |
| Firefight: Alpha Site | Score over 200,000 points in Firefight on Alpha Site. | 10 |
| Firefight: Windward | Score over 200,000 points in Firefight on Windward. | 10 |
| Firefight: Chasm Ten | Score over 200,000 points in Firefight on Chasm Ten. | 10 |
| Firefight: Last Exit | Score over 200,000 points in Firefight on Last Exit. | 10 |
| Vidmaster Challenge: Classic | Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown. | 25 |
| Vidmaster Challenge: Endure | In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op. | 25 |
| Vidmaster Challenge: Déjà Vu | Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no ‘Hog or Scorpion | 25 |
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