Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | RZA | Expert | 8.18 minutes |
| (Co-op) l4d_airport05_runway | RZA | Expert | 9.41 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | RZA | Expert | 4.79 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | RZA | Expert | 8.18 minutes |
| (Co-op) l4d_airport05_runway | RZA | Expert | 9.41 minutes |
| (Co-op) l4d_farm01_hilltop | RZA | Expert | 4.79 minutes |