This page contains Halo 3: ODST Unlockables for Xbox 360 called "Firefight Missions" and has been posted or updated on Sep 28, 2009 by keith09. Let us know what you think of this Unlockable by thumbs voting.
Complete certain campaign missions to unlock new maps for the Firefight game mode.
|Unlockable:||How to Unlock:|
|Alpha Site||Complete the ONI Alpha Site campaign mission on any difficulty.|
|Chasm Ten||Complete the Date Hive campaign mission on any difficulty.|
|Last Exit||Complete the Coastal Highway campaign mission on any difficulty.|
|Lost Platoon||Complete the Uplift Reserve campaign mission on any difficulty.|
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