Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | | Normal | 4.67 minutes |
| (Co-op) l4d_airport02_offices | | Normal | 13.36 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 13.10 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 7.99 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 7.39 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | | Normal | 4.67 minutes |
| (Co-op) l4d_airport02_offices | | Normal | 13.36 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 13.10 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 7.99 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 7.39 minutes |