Last Exit is a medium sized, symmetrical map with a large roundabout in the middle, upon which stands a small structure. Players spawn inside a small building on one side of the map. This building features two entrances at the front, one upstairs and one downstairs, as well as health packs and ammunition.
Directly outside the spawn building is a broad set of stairs that lead out to the enemy spawn points. To the left and right of the entrance are elevated positions. The left of these elevated positions contains a Sniper Rifle, while the right features a Rocket launcher. Additional Rocket ammunition can be found in the center of the map at ground level.
- The map's layout is identical to that of one of the four Survival maps from Marathon 2: Durandal.
- The map is also the location of the ODSTs last stand on the Campaign level Coastal Highway.
- This level is unlocked in Firefight by completing Coastal Highway in Campaign.
- One easy strategy on this map is to board the enemy Ghosts and use them to shoot and splatter difficult enemies, including Chieftains and Hunters. The Ghosts are also small enough to move up stairways.