Nonostante Halo 3: ODST arriverà sugli scaffali solo il 22 settembre, in rete circola già quella che sembra essere la lista effettiva dei 47 obiettivi (Achievements) presenti nel gioco, per un totale di 1000 punti. Eccoli qua elencati, ma attenzione perché possono contenere spoiler.
Found the first Audio Log.
Kikowani Station - 30 GamerScore
Completed Kikowani Station on Normal, Heroic or Legendary.
Data Hive - 50 GamerScore
Completed Data Hive and unlocked the Chasm Ten Firefight mission.
Kizingo Boulevard - 30 GamerScore
Completed Kizingo Blvd. and unlocked the Mickey character in Firefight.
ONI Alpha Site - 30 GamerScore
Completed ONI Alpha Site and unlocked the Alpha Site Firefight mission.
NMPD HQ - 30 GamerScore
Completed NMPD HQ and unlocked the Romeo character in Firefight.
Campaign Complete: Legendary - 100 GamerScore
Completed Legendary and unlocked the Dare character in Firefight.
Junior Detective - 10 GamerScore
Found the first clue unravelling the mystery.
Gumshoe - 10 GamerScore
Found the 3rd clue unravelling the mystery, alone or with another ODST.
Coastal Highway - 50 GamerScore
Completed Coastal Highway and unlocked the Last Exit Firefight mission.
Campaign Complete: Normal - 100 GamerScore
Completed the Campaign on Normal difficulty.
Campaign Complete: Heroic - 100 GamerScore
Completed the Campaign on Heroic difficulty.
Boom, Headshot - 5 GamerScore
Got 10 automag headshot kills in any level.
Stunning! - 5 GamerScore
Stunned a vehicle with an overcharged plasma pistol and quickly killed the driver.
Ewww, Sticky - 5 GamerScore
Got 5 sticky grenade kills in any level.
Heal Up - 5 GamerScore
Found the first Medical Kiosk and healed yourself.
Tourist - 5 GamerScore
Accessed and downloaded the city map to your VISR.
Dark Times - 5 GamerScore
Killed 5 enemies while using VISR mode.
Headcase - 5 GamerScore
Finished any level with at least one Skull activated.
Tayari Plaza - 30 GamerScore
Completed Tayari Plaza and unlocked the Buck character in Firefight.
Uplift Reserve - 30 GamerScore
Completed Uplift Reserve and unlocked the Dutch character in Firefight.
My Clothes! - 5 GamerScore
Plasma Pistol Overcharged and quickly killed 10 Brutes.
Pink and Deadly - 5 GamerScore
Got 10 Needler supercombine kills on any covenant.
Trading Down - 5 GamerScore
Traded weapons with a fellow character
Firefight: Security Zone - 10 GamerScore
Scored over 200,000 points in Firefight on Security Zone.
Firefight: Alpha Site - 10 GamerScore
Scored over 200,000 points in Firefight on Alpha Site.
Firefight: Rally Point - 10 GamerScore
Scored over 200,000 points in Firefight on Rally Point.
Firefight: Crater - 10 GamerScore
Scored over 200,000 points in Firefight on Crater.
Firefight: Lost Platoon - 10 GamerScore
Scored over 200,000 points in Firefight on Lost Platoon.
Firefight: Windward - 10 GamerScore
Scored over 200,000 points in Firefight on Windward.
Vidmaster Challenge: Endure - 25 GamerScore
In Firefight, on any mission, passed the 4th Set on 4-player Heroic LIVE co-op.
Vidmaster Challenge: Déjà vu - 25 GamerScore
Completed Highway on 4-player Legendary LIVE co-op, with Iron, and no ‘Hog or Scorpion.
Vidmaster Challenge: Classic - 25 GamerScore
Finished any level solo on Legendary, on LIVE, with no shots fired or grenades thrown.
Firefight: Chasm Ten - 10 GamerScore
Scored over 200,000 points in Firefight on Chasm Ten.
Firefight: Last Exit - 10 GamerScore
Scored over 200,000 points in Firefight on Last Exit.
Be Like Marty - 10 GamerScore
In Firefight, finished a full round without killing a single enemy.
Laser Blaster - 5 GamerScore
Got 10 Spartan Laser kills on ONI Alpha Site.
Dome Inspector - 5 GamerScore
Got 15 headshot kills on NMPD HQ.
Both Tubes - 5 GamerScore
Got 10 Rocket kills on Kizingo Boulevard.
Super Sleuth - 10 GamerScore
Found the final clue unravelling the mystery, alone or with another ODST.
Wraith Killer - 5 GamerScore
Killed all Wraiths in Uplift Reserve
I Like Fire - 5 GamerScore
Killed 10 enemies with the Flamethrower on Data Hive.
All Ears - 30 GamerScore
Found 15 Audio Logs, alone or with another ODST.
Audiophile - 75 GamerScore
Found all Audio Logs, alone or with another ODST.
Tuned In - 15 GamerScore
Found 3 Audio Logs, alone or with another ODST.
Good Samaritan - 20 GamerScore
Killed no Engineers in the city at night during entire campaign, alone or with another ODST.
Naughty Naughty - 5 GamerScore
Killed 10 Engineers in the city at night, alone or with another ODST.