Coastal Highway (achievement)
From Halopedia, the Halo wiki
Coastal Highway
Coastal Highway is an Achievement in Halo 3: ODST. It is unlocked when the player completes the Coastal Highway Mission in Campaign Mode and unlocks the map Last Exit for Firefight. It is worth 50 Gamerpoints.[1]
It is represented by a red and silver signpost with a Waste Disposal Elephant in front of it.
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