Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Wave | Expert | 3.73 minutes |
| (Co-op) l4d_airport02_offices | Wave | Expert | 14.37 minutes |
| (Co-op) l4d_airport04_terminal | Wave | Advanced | 8.17 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Wave | Expert | 3.73 minutes |
| (Co-op) l4d_airport02_offices | Wave | Expert | 14.37 minutes |
| (Co-op) l4d_airport04_terminal | Wave | Advanced | 8.17 minutes |
| (Co-op) l4d_river02_barge | Wave | Expert | 16.20 minutes |
| (Co-op) l4d_river02_barge | Wave | Expert | 16.20 minutes |