Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | | Normal | 11.46 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 12.85 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 12.41 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 5.72 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | | Normal | 11.46 minutes |
| (Co-op) l4d_airport03_garage | | Normal | 12.85 minutes |
| (Co-op) l4d_airport04_terminal | | Normal | 12.41 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 5.72 minutes |