Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  Pringalli | Advanced | 6.40 minutes |
| (Co-op) l4d_airport02_offices | Pringalli | Advanced | 12.87 minutes |
| (Co-op) l4d_airport03_garage | Pringalli | Advanced | 6.99 minutes |
| (Co-op) l4d_airport04_terminal | Pringalli | Advanced | 7.22 minutes |
| (Co-op) l4d_airport05_runway | Pringalli | Advanced | 8.74 minutes |
