Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | NIETO | Advanced | 2.64 minutes |
| (Co-op) l4d_airport02_offices | NIETO | Advanced | 10.67 minutes |
| (Co-op) l4d_airport03_garage | NIETO | Advanced | 8.21 minutes |
| (Co-op) l4d_airport04_terminal | NIETO | Advanced | 7.34 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | NIETO | Advanced | 2.64 minutes |
| (Co-op) l4d_airport02_offices | NIETO | Advanced | 10.67 minutes |
| (Co-op) l4d_airport03_garage | NIETO | Advanced | 8.21 minutes |
| (Co-op) l4d_airport04_terminal | NIETO | Advanced | 7.34 minutes |
| (Co-op) l4d_river01_docks | NIETO | Expert | 9.46 minutes |
| (Co-op) l4d_river01_docks | NIETO | Expert | 9.46 minutes |
| (Co-op) l4d_river01_docks | NIETO | Advanced | 10.54 minutes |
| (Co-op) l4d_river01_docks | NIETO | Advanced | 10.54 minutes |
| (Co-op) l4d_river02_barge | NIETO | Expert | 10.69 minutes |
| (Co-op) l4d_river02_barge | NIETO | Expert | 10.69 minutes |
| (Co-op) l4d_river02_barge | NIETO | Advanced | 9.88 minutes |
| (Co-op) l4d_river02_barge | NIETO | Advanced | 9.88 minutes |