Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | | Normal | 9.35 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 7.75 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | | Normal | 5.63 minutes |
| (Co-op) l4d_farm02_traintunnel | | Normal | 6.48 minutes |
| (Co-op) l4d_farm03_bridge | | Normal | 4.80 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport04_terminal | | Normal | 9.35 minutes |
| (Co-op) l4d_airport05_runway | | Normal | 7.75 minutes |
| (Co-op) l4d_farm01_hilltop | | Normal | 5.63 minutes |
| (Co-op) l4d_farm02_traintunnel | | Normal | 6.48 minutes |
| (Co-op) l4d_farm03_bridge | | Normal | 4.80 minutes |