Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  Irzdostu | Normal | 4.79 minutes |
| (Co-op) l4d_airport02_offices | Irzdostu | Normal | 9.92 minutes |
| (Co-op) l4d_airport03_garage | Irzdostu | Normal | 9.66 minutes |
| (Co-op) l4d_airport04_terminal | Irzdostu | Normal | 8.19 minutes |
| (Co-op) l4d_airport05_runway | Irzdostu | Normal | 8.18 minutes |
