Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  VeryWellCool | Normal | 7.05 minutes |
| (Co-op) l4d_airport02_offices | VeryWellCool | Normal | 13.39 minutes |
| (Co-op) l4d_airport03_garage | VeryWellCool | Normal | 9.68 minutes |
| (Co-op) l4d_airport04_terminal | VeryWellCool | Normal | 7.21 minutes |
| (Co-op) l4d_airport05_runway | VeryWellCool | Normal | 5.62 minutes |
