Coastal Highway

Coastal Highway is a Halo 3: ODST level. The characters, objectives and enemies are currently unknown, the only known thing is the Coastal Highway achievement, which is unlocked after you complete the level on normal or above and therefore unlock the Last Exit mission on firefight mode.

The Vidmaster Challenge: Deja Vu can be unlocked by beating this level on Legendary LIVE Co-op, with Iron activated, and without Warthogs or Scorpions.