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A list of the Halo 3 achievements has leaked, revealing some details of the highly anticipated title. There are apparently nine levels and the popular skull hunt returns too. There is also an achievement for discovering all of the terminals, which is an unknown hunt that is new to the Halo series.
Microsoft, when contacted for comment, made sure to state that this list is not final and is subject to change.
The complete list follows.
| Name | Description | Points |
| 1. Landfall | Finish the first mission of the Campaign on Normal, Heroic, or Legendary. | 20 Points |
| 2. Holdout | Finish the second mission of the Campaign on Normal, Heroic, or Legendary. | 20 Points |
| 3. The Road | Finish the third mission of the Campaign on Normal, Heroic, or Legendary. | 20 Points |
| 4. Assault | Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary. | 30 Points |
| 5. Cleansing | Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary. | 30 Points |
| 6. Refuge | Finish the sixth mission of the Campaign on Normal, Heroic, or Legendary. | 30 Points |
| 7. Last Stand | Finish the seventh mission of the Campaign on Normal, Heroic, or Legendary. | 40 Points |
| 8. The Key | Finish the eighth mission of the Campaign on Normal, Heroic, or Legendary. | 40 Points |
| 9. Return | Finish the final mission of the Campaign on Normal, Heroic, or Legendary. | 50 Points |
| 10. Campaign Complete: Normal | Finish the Campaign on Normal. | 125 Points |
| 11. Campaign Complete: Heroic | Finish the Campaign on Heroic (unlocks achievement for Normal, if not earned). | 125 Points |
| 12. Campaign Complete: Legendary | Finish the Campaign on Legendary (unlocks achievements for Normal and Heroic, if not earned). | 125 Points |
| 13. Iron | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 14. Black Eye | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 15. Tough Luck | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 16. Catch | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 17. Fog | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 18. Famine | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 19. Thunderstorm | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 20. Tilt | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 21. Mythic | Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull. | 10 Points |
| 22. Spartan Program Recruit | Win your first game in matchmaking to sign up for the Spartan Program (Online). | 10 Points |
| 23. UNSC Spartan | Earn your Sergeant rating to be recognized as a true Spartan (Online). | 15 Points |
| 24. Spartan Officer | Advance to the Spartan Officer ranks (Online). | 25 Points |
| 25. Two for One | Score a Double Kill with a single spartan laser shot in a ranked free for all playlist (Online). | 5 Points |
| 26. Too Close to the Sun | Destroy an enemy banshee with the spartan laser or missile pod in a ranked playlist or in campaign. | 5 Points |
| 27. Triple Kill | Kill 3 enemies within 4 seconds of one another in a ranked free for all playlist (Online). | 5 Points |
| 28. Overkill | Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online). | 5 Points |
| 29. Lee R Wilson Memorial | Score 5 grenade sticks in any ranked free for all playlist (Online). | 5 Points |
| 30. We’re in for some Chop | Destroy an enemy vehicle with equipment in a ranked playlist or in campaign. | 5 Points |
| 31. Killing Frenzy | Kill 10 enemies without dying in any ranked free for all playlist (Online). | 5 Points |
| 32. Steppin’ Razor | Score a Triple Kill with the sword in a ranked free for all playlist (Online). | 5 Points |
| 33. Mongoose Mowdown | Splatter an enemy with the mongoose in a ranked free for all playlist (Online). | 5 Points |
| 34. Up Close and Personal | Kill 5 enemies by melee or assassination in a ranked free for all playlist (Online). | 5 Points |
| 35. Fear the Pink Mist | Kill 5 enemies with the needler in a ranked free for all playlist or in campaign. | 5 Points |
| 36. Headshot Honcho | Kill 10 enemies with headshots in a ranked free for all playlist or in campaign. | 5 Points |
| 37. Used Car Salesman | Destroy a vehicle that has three enemies in it in a ranked playlist or in campaign. | 5 Points |
| 38. Marathon Man | Locate and access all Terminals in the Campaign. | 40 Points |
| 39. MVP | Earn the MVP in any ranked playlist (Online). | 5 Points |
| 40. Maybe Next Time Buddy | Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online). | 5 Points |
| 41. Demon | Score over Points in the Campaign meta-game on the second mission. | 10 Points |
| 42. Guerilla | Score over Points in the Campaign meta-game on the first mission. | 10 Points |
| 43. Cavalier | Score over Points in the Campaign meta-game on the third mission. | 10 Points |
| 44. Askar | Score over Points in the Campaign meta-game on the fourth mission. | 10 Points |
| 45. Exterminator | Score over Points in the Campaign meta-game on the fifth mission. | 10 Points |
| 46. Ranger | Score over Points in the Campaign meta-game on the sixth mission. | 10 Points |
| 47. Vanguard | Score over Points in the Campaign meta-game on the seventh mission. | 10 Points |
| 48. Orpheus | Score over Points in the Campaign meta-game on eighth mission. | 10 Points |
| 49. Reclaimer | Score over Points in the Campaign meta-game on the final mission. | 10 Points |
The image featured at the top of this post is ©The Legend of Heroes: Trails of Cold Steel III key art.