Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Rex Kramer | Normal | 3.51 minutes |
| (Co-op) l4d_airport02_offices | Rex Kramer | Normal | 10.08 minutes |
| (Co-op) l4d_airport03_garage | Rex Kramer | Normal | 10.81 minutes |
| (Co-op) l4d_airport04_terminal | Rex Kramer | Advanced | 8.00 minutes |
| (Co-op) l4d_airport04_terminal | Rex Kramer | Normal | 3.99 minutes |
| (Co-op) l4d_airport05_runway | Rex Kramer | Normal | 6.88 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Rex Kramer | Normal | 3.51 minutes |
| (Co-op) l4d_airport02_offices | Rex Kramer | Normal | 10.08 minutes |
| (Co-op) l4d_airport03_garage | Rex Kramer | Normal | 10.81 minutes |
| (Co-op) l4d_airport04_terminal | Rex Kramer | Advanced | 8.00 minutes |
| (Co-op) l4d_airport04_terminal | Rex Kramer | Normal | 3.99 minutes |
| (Co-op) l4d_airport05_runway | Rex Kramer | Normal | 6.88 minutes |