Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | 1234567890 | Advanced | 2.23 minutes |
| (Co-op) l4d_airport02_offices | 1234567890 | Advanced | 6.17 minutes |
| (Co-op) l4d_airport03_garage | 1234567890 | Advanced | 8.37 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | 1234567890 | Advanced | 2.23 minutes |
| (Co-op) l4d_airport02_offices | 1234567890 | Advanced | 6.17 minutes |
| (Co-op) l4d_airport03_garage | 1234567890 | Advanced | 8.37 minutes |
| (Co-op) l4d_river02_barge | 1234567890 | Advanced | 9.44 minutes |
| (Co-op) l4d_river02_barge | 1234567890 | Advanced | 9.44 minutes |