Retro Game Tips for Halo 3 (Xbox 360)
Achievement: Askar (10)
When:
during game
How:
Score over 15,000 points in the Campaign meta-game on the fourth mission.
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Achievement: Exterminator (10)
When:
during game
How:
Score over 15,000 points in the Campaign meta-game on the fifth mission.
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Achievement: Assault (30)
When:
during game
How:
Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary.
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Achievement: Killing Frenzy (5)
When:
during game
How:
Kill 10 enemies without dying in any ranked free for all playlist (Online).
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Achievement: Cleansing (30)
When:
during game
How:
Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary
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Achievement: Black Eye (10)
When:
during game
How:
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
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Achievement: Campaign Complete: Legendary (125)
When:
during game
How:
Finish the Campaign on Legendary (normal and heroic are unlocked as well).
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Achievement: Famine (10)
When:
during game
How:
Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
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Achievement: Spartan Officer (25)
Achievement: Campaign Complete: Heroic (125)
When:
during game
How:
Finish the Campaign on Heroic (normal is unlocked as well).
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