Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | | Advanced | 10.11 minutes |
| (Co-op) l4d_airport05_runway | | Advanced | 6.90 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | | Advanced | 4.56 minutes |
| (Co-op) l4d_farm02_traintunnel | | Advanced | 9.02 minutes |
| (Co-op) l4d_farm03_bridge | | Advanced | 8.78 minutes |
| (Co-op) l4d_farm04_barn | | Advanced | 7.40 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | | Advanced | 10.11 minutes |
| (Co-op) l4d_airport05_runway | | Advanced | 6.90 minutes |
| (Co-op) l4d_farm01_hilltop | | Advanced | 4.56 minutes |
| (Co-op) l4d_farm02_traintunnel | | Advanced | 9.02 minutes |
| (Co-op) l4d_farm03_bridge | | Advanced | 8.78 minutes |
| (Co-op) l4d_farm04_barn | | Advanced | 7.40 minutes |