Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Comrade | Expert | 4.76 minutes |
| (Co-op) l4d_airport01_greenhouse | Comrade | Advanced | 3.75 minutes |
| (Co-op) l4d_airport02_offices | Comrade | Advanced | 14.75 minutes |
| (Co-op) l4d_airport03_garage | Comrade | Advanced | 10.37 minutes |
| (Co-op) l4d_airport04_terminal | Comrade | Advanced | 8.24 minutes |
| (Co-op) l4d_airport05_runway | Comrade | Advanced | 9.37 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Comrade | Expert | 4.76 minutes |
| (Co-op) l4d_airport01_greenhouse | Comrade | Advanced | 3.75 minutes |
| (Co-op) l4d_airport02_offices | Comrade | Advanced | 14.75 minutes |
| (Co-op) l4d_airport03_garage | Comrade | Advanced | 10.37 minutes |
| (Co-op) l4d_airport04_terminal | Comrade | Advanced | 8.24 minutes |
| (Co-op) l4d_airport05_runway | Comrade | Advanced | 9.37 minutes |
| (Co-op) l4d_river03_port | Comrade | Expert | 11.98 minutes |
| (Co-op) l4d_river03_port | Comrade | Expert | 11.98 minutes |