Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | | Normal | 2.37 minutes |
| (Co-op) l4d_airport02_offices | | Normal | 8.55 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 8.42 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 5.11 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 6.31 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | | Normal | 2.37 minutes |
| (Co-op) l4d_airport02_offices | | Normal | 8.55 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 8.42 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 5.11 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 6.31 minutes |