Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  Nesstical | Normal | 6.54 minutes |
| (Co-op) l4d_airport02_offices | Nesstical | Normal | 7.08 minutes |
| (Co-op) l4d_airport03_garage | Nesstical | Normal | 14.84 minutes |
| (Co-op) l4d_airport04_terminal | Nesstical | Normal | 9.50 minutes |
| (Co-op) l4d_airport05_runway | Nesstical | Normal | 6.28 minutes |
