Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | NUB | Advanced | 7.63 minutes |
| (Co-op) l4d_airport04_terminal | NUB | Advanced | 4.81 minutes |
| (Co-op) l4d_airport05_runway | NUB | Advanced | 6.95 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | NUB | Advanced | 3.80 minutes |
| (Co-op) l4d_farm02_traintunnel | NUB | Advanced | 4.86 minutes |
| (Co-op) l4d_farm03_bridge | NUB | Advanced | 7.08 minutes |
| (Co-op) l4d_farm04_barn | NUB | Advanced | 5.52 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | NUB | Advanced | 7.63 minutes |
| (Co-op) l4d_airport04_terminal | NUB | Advanced | 4.81 minutes |
| (Co-op) l4d_airport05_runway | NUB | Advanced | 6.95 minutes |
| (Co-op) l4d_farm01_hilltop | NUB | Advanced | 3.80 minutes |
| (Co-op) l4d_farm02_traintunnel | NUB | Advanced | 4.86 minutes |
| (Co-op) l4d_farm03_bridge | NUB | Advanced | 7.08 minutes |
| (Co-op) l4d_farm04_barn | NUB | Advanced | 5.52 minutes |