Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Max Sheff | Advanced | 2.57 minutes |
| (Co-op) l4d_airport02_offices | Max Sheff | Advanced | 5.99 minutes |
| (Co-op) l4d_airport03_garage | Max Sheff | Advanced | 8.55 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Max Sheff | Advanced | 2.57 minutes |
| (Co-op) l4d_airport02_offices | Max Sheff | Advanced | 5.99 minutes |
| (Co-op) l4d_airport03_garage | Max Sheff | Advanced | 8.55 minutes |
| (Co-op) l4d_river01_docks | Max Sheff | Expert | 1.07 minutes |
| (Co-op) l4d_river01_docks | Max Sheff | Expert | 1.07 minutes |
| (Co-op) l4d_river02_barge | Max Sheff | Expert | 10.67 minutes |
| (Co-op) l4d_river02_barge | Max Sheff | Expert | 10.67 minutes |