Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  Frombrazzers | Advanced | 4.56 minutes |
| (Co-op) l4d_airport02_offices | Frombrazzers | Advanced | 12.18 minutes |
| (Co-op) l4d_airport03_garage | Frombrazzers | Advanced | 11.18 minutes |
| (Co-op) l4d_airport04_terminal | Frombrazzers | Advanced | 6.49 minutes |
