Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport02_offices |  S H L K A M Y | Expert | 9.54 minutes |
| (Co-op) l4d_airport03_garage | S H L K A M Y | Expert | 11.23 minutes |
| (Co-op) l4d_airport04_terminal | S H L K A M Y | Expert | 6.44 minutes |
| (Co-op) l4d_airport05_runway | S H L K A M Y | Expert | 6.33 minutes |
