Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  wonderlandneko | Advanced | 4.40 minutes |
| (Co-op) l4d_airport02_offices | wonderlandneko | Advanced | 14.96 minutes |
| (Co-op) l4d_airport03_garage | wonderlandneko | Advanced | 8.77 minutes |
| (Co-op) l4d_airport04_terminal | wonderlandneko | Advanced | 6.84 minutes |
| (Co-op) l4d_airport05_runway | wonderlandneko | Advanced | 6.63 minutes |
