Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse |  owlfreemornings | Normal | 10.18 minutes |
| (Co-op) l4d_airport02_offices | owlfreemornings | Normal | 14.88 minutes |
| (Co-op) l4d_airport03_garage | owlfreemornings | Normal | 16.55 minutes |
| (Co-op) l4d_airport04_terminal | owlfreemornings | Normal | 10.33 minutes |
| (Co-op) l4d_airport05_runway | owlfreemornings | Normal | 7.90 minutes |
