Firefight: Windward
From Halopedia, the Halo wiki
Firefight: Windward
Firefight: Windward is an achievement in Halo 3: ODST awarded for scoring over 200,000 points during a match of Firefight on the map Windward. It is worth 10 Gamerpoints.
This achievement is represented by an olive square with a bird of prey flanked by a star on each side.
When doing this on single player, allow a minimum of 2 hours to reach the 200,000 points[1].
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