Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | WaVe | Advanced | 3.51 minutes |
| (Co-op) l4d_airport02_offices | WaVe | Advanced | 11.40 minutes |
| (Co-op) l4d_airport03_garage | WaVe | Advanced | 13.65 minutes |
| (Co-op) l4d_airport04_terminal | WaVe | Advanced | 9.30 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | WaVe | Expert | 6.73 minutes |
| (Co-op) l4d_farm02_traintunnel | WaVe | Expert | 5.42 minutes |
| (Co-op) l4d_farm04_barn | WaVe | Expert | 8.78 minutes |
| (Co-op) l4d_farm05_cornfield | WaVe | Expert | 10.10 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | WaVe | Advanced | 3.51 minutes |
| (Co-op) l4d_airport02_offices | WaVe | Advanced | 11.40 minutes |
| (Co-op) l4d_airport03_garage | WaVe | Advanced | 13.65 minutes |
| (Co-op) l4d_airport04_terminal | WaVe | Advanced | 9.30 minutes |
| (Co-op) l4d_farm01_hilltop | WaVe | Expert | 6.73 minutes |
| (Co-op) l4d_farm02_traintunnel | WaVe | Expert | 5.42 minutes |
| (Co-op) l4d_farm04_barn | WaVe | Expert | 8.78 minutes |
| (Co-op) l4d_farm05_cornfield | WaVe | Expert | 10.10 minutes |
| (Co-op) l4d_river01_docks | WaVe | Normal | 18.59 seconds |
| (Co-op) l4d_river01_docks | WaVe | Normal | 18.59 seconds |