Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  Danger Dan | Advanced | 5.42 minutes |
| (Co-op) l4d_airport02_offices | Danger Dan | Advanced | 16.25 minutes |
| (Co-op) l4d_airport03_garage | Danger Dan | Advanced | 10.28 minutes |
| (Co-op) l4d_airport04_terminal | Danger Dan | Advanced | 9.98 minutes |
| (Co-op) l4d_airport05_runway | Danger Dan | Advanced | 7.68 minutes |
