Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  killer | Normal | 15.87 minutes |
| (Co-op) l4d_airport03_garage | killer | Advanced | 16.24 minutes |
| (Co-op) l4d_airport04_terminal | killer | Advanced | 4.24 minutes |
| (Co-op) l4d_airport04_terminal | killer | Normal | 2.36 minutes |
| (Co-op) l4d_airport05_runway | killer | Advanced | 8.42 minutes |
