Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport02_offices |  superiorish | Advanced | 14.80 minutes |
| (Co-op) l4d_airport03_garage | superiorish | Advanced | 11.64 minutes |
| (Co-op) l4d_airport04_terminal | superiorish | Advanced | 7.39 minutes |
| (Co-op) l4d_airport05_runway | superiorish | Advanced | 7.86 minutes |
