Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport02_offices |  Wardogbill | Normal | 7.80 minutes |
| (Co-op) l4d_airport03_garage | Wardogbill | Advanced | 11.64 minutes |
| (Co-op) l4d_airport03_garage | Wardogbill | Normal | 6.79 minutes |
| (Co-op) l4d_airport04_terminal | Wardogbill | Advanced | 7.39 minutes |
| (Co-op) l4d_airport04_terminal | Wardogbill | Normal | 5.30 minutes |
| (Co-op) l4d_airport05_runway | Wardogbill | Advanced | 7.86 minutes |
| (Co-op) l4d_airport05_runway | Wardogbill | Normal | 6.13 minutes |
