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1. Landfall
Finish the first mission of the Campaign on Normal, Heroic, or Legendary.
|
20 |
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2. Holdout
Finish the second mission of the Campaign on Normal, Heroic, or Legendary.
|
20 |
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3. The Road
Finish the third mission of the Campaign on Normal, Heroic, or Legendary.
|
20 |
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4. Assualt
Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary.
|
30 |
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5. Cleansing
Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary.
|
30 |
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6. Refuge
Finish the sixth mission of the Campaign on Normal, Heroic, or Legendary.
|
30 |
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7. Last Stand
Finish the seventh mission of the Campaign on Normal, Heroic, or Legendary.
|
40 |
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8. The Key
Finish the eighth mission of the Campaign on Normal, Heroic, or Legendary.
|
40 |
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9. Return
Finish the final mission of the Campaign on Normal, Heroic, or Legendary.
|
50 |
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10. Campaign Complete: Normal
Finish the Campaign on Normal.
|
125 |
 |
11. Campaign Complete: Heroic
Finish the Campaign on Heroic (unlocks achievement for Normal, if not earned).
|
125 |
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12. Campaign Complete: Legendary
Finish the Campaign on Legendary (unlocks achievements for Normal and Heroic, if not earned).
|
125 |
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13. Iron
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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14. Black Eye
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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15. Tough Luck
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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16. Catch
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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17. Fog
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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18. Famine
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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19. Thunderstorm
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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20. Tilt
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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21. Mythic
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
|
10 |
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22. Spartan Program Recruit
Win your first game in matchmaking to sign up for the Spartan Program (Online).
|
10 |
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23. UNSC Spartan
Earn your Sergeant rating to be recognized as a true Spartan (Online).
|
15 |
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24. Spartan Officer
Advance to the Spartan Officer ranks (Online).
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25 |
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25. Two for One
Score a Double Kill with a single spartan laser shot in a ranked free for all playlist (Online).
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5 |
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26. Too Close to the Sun
Destroy an enemy banshee with the spartan laser or missile pod in a ranked playlist or in campaign.
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5 |
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27. Triple Kill
Kill 3 enemies within 4 seconds of one another in a ranked free for all playlist (Online).
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5 |
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28. Overkill
Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online).
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5 |
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29. Lee R Wilson Memorial
Score 5 grenade sticks in any ranked free for all playlist (Online).
|
5 |
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30. We’re in for some Chop
Destroy an enemy vehicle with equipment in a ranked playlist or in campaign.
|
5 |
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31. Killing Frenzy
Kill 10 enemies without dying in any ranked free for all playlist (Online).
|
5 |
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32. Steppin’ Razor
Score a Triple Kill with the sword in a ranked free for all playlist (Online).
|
5 |
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33. Mongoose Mowdown
Splatter an enemy with the mongoose in a ranked free for all playlist (Online).
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5 |
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34. Up Close and Personal
Kill 5 enemies by melee or assassination in a ranked free for all playlist (Online).
|
5 |
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35. Fear the Pink Mist
Kill 5 enemies with the needler in a ranked free for all playlist or in campaign.
|
5 |
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36. Headshot Honcho
Kill 10 enemies with headshots in a ranked free for all playlist or in campaign.
|
5 |
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37. Used Car Salesman
Destroy a vehicle that has three enemies in it in a ranked playlist or in campaign.
|
5 |
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38. Marathon Man
Locate and access all Terminals in the Campaign.
|
40 |
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39. MVP
Earn the MVP in any ranked playlist (Online).
|
5 |
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40. Maybe Next Time Buddy
Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online).
|
5 |
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41. Demon
Score over points in the Campaign meta-game on the second mission.
|
10 |
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42. Guerilla
Score over points in the Campaign meta-game on the first mission.
|
10 |
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43. Cavalier
Score over points in the Campaign meta-game on the third mission.
|
10 |
|
44. Askar
Score over points in the Campaign meta-game on the fourth mission.
|
10 |
|
45. Exterminator
Score over points in the Campaign meta-game on the fifth mission.
|
10 |
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46. Ranger
Score over points in the Campaign meta-game on the sixth mission.
|
10 |
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47. Vanguard
Score over points in the Campaign meta-game on the seventh mission.
|
10 |
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48. Orpheus
Score over points in the Campaign meta-game on eighth mission.
|
10 |
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49. Reclaimer
Score over points in the Campaign meta-game on the final mission.
|
10 |
2007-09-25 
2007-09-26 
