Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | Forever | Normal | 7.04 minutes |
| (Co-op) l4d_airport03_garage | Forever | Normal | 6.08 minutes |
| (Co-op) l4d_airport04_terminal | Forever | Normal | 4.36 minutes |
| (Co-op) l4d_airport05_runway | Forever | Normal | 5.49 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm02_traintunnel | Forever | Normal | 4.37 minutes |
| (Co-op) l4d_farm03_bridge | Forever | Normal | 5.97 minutes |
| (Co-op) l4d_farm04_barn | Forever | Normal | 3.40 minutes |
| (Co-op) l4d_farm05_cornfield | Forever | Normal | 7.22 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | Forever | Normal | 7.04 minutes |
| (Co-op) l4d_airport03_garage | Forever | Normal | 6.08 minutes |
| (Co-op) l4d_airport04_terminal | Forever | Normal | 4.36 minutes |
| (Co-op) l4d_airport05_runway | Forever | Normal | 5.49 minutes |
| (Co-op) l4d_farm02_traintunnel | Forever | Normal | 4.37 minutes |
| (Co-op) l4d_farm03_bridge | Forever | Normal | 5.97 minutes |
| (Co-op) l4d_farm04_barn | Forever | Normal | 3.40 minutes |
| (Co-op) l4d_farm05_cornfield | Forever | Normal | 7.22 minutes |