Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Belka, | Normal | 4.82 minutes |
| (Co-op) l4d_airport02_offices | Belka, | Advanced | 14.37 minutes |
| (Co-op) l4d_airport03_garage | Belka, | Advanced | 11.79 minutes |
| (Co-op) l4d_airport04_terminal | Belka, | Advanced | 6.64 minutes |
| (Co-op) l4d_airport05_runway | Belka, | Advanced | 6.83 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | Belka, | Advanced | 4.70 minutes |
| (Co-op) l4d_farm02_traintunnel | Belka, | Advanced | 10.90 minutes |
| (Co-op) l4d_farm03_bridge | Belka, | Advanced | 8.73 minutes |
| (Co-op) l4d_farm04_barn | Belka, | Advanced | 12.60 minutes |
| (Co-op) l4d_farm05_cornfield | Belka, | Advanced | 10.50 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Belka, | Normal | 4.82 minutes |
| (Co-op) l4d_airport02_offices | Belka, | Advanced | 14.37 minutes |
| (Co-op) l4d_airport03_garage | Belka, | Advanced | 11.79 minutes |
| (Co-op) l4d_airport04_terminal | Belka, | Advanced | 6.64 minutes |
| (Co-op) l4d_airport05_runway | Belka, | Advanced | 6.83 minutes |
| (Co-op) l4d_farm01_hilltop | Belka, | Advanced | 4.70 minutes |
| (Co-op) l4d_farm02_traintunnel | Belka, | Advanced | 10.90 minutes |
| (Co-op) l4d_farm03_bridge | Belka, | Advanced | 8.73 minutes |
| (Co-op) l4d_farm04_barn | Belka, | Advanced | 12.60 minutes |
| (Co-op) l4d_farm05_cornfield | Belka, | Advanced | 10.50 minutes |