Campaign Complete: Legendary (Halo 3 achievement)
From Halopedia, the Halo wiki
Campaign Complete: Legendary
Campaign Complete: Legendary is a Halo 3 Campaign Achievement. It is earned when the player completes the Halo 3 Campaign on Legendary difficulty. This Achievement gives 125 Gamerpoints to the player and unlocks the Campaign Complete: Normal and Campaign Complete: Heroic achievements if not yet earned.
This achievement is easier to get when playing with 2 or more people.
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