| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Natik* | Normal | 54.89 seconds |
| (Co-op) l4d_airport02_offices | Natik* | Normal | 37.92 seconds |
| (Co-op) l4d_airport03_garage | Natik* | Normal | 8.82 minutes |
| (Co-op) l4d_airport04_terminal | Natik* | Normal | 6.10 minutes |
| (Co-op) l4d_airport05_runway | Natik* | Advanced | 7.05 minutes |
| (Co-op) l4d_airport05_runway | Natik* | Normal | 5.81 minutes |
| (Co-op) l4d_farm01_hilltop | Natik* | Normal | 2.79 minutes |
| (Co-op) l4d_farm02_traintunnel | Natik* | Expert | 5.83 minutes |
| (Co-op) l4d_farm02_traintunnel | Natik* | Normal | 6.22 minutes |
| (Co-op) l4d_farm03_bridge | Natik* | Expert | 9.28 minutes |
| (Co-op) l4d_farm03_bridge | Natik* | Normal | 5.38 minutes |
| (Co-op) l4d_farm04_barn | Natik* | Expert | 10.20 minutes |
| (Co-op) l4d_farm04_barn | Natik* | Normal | 3.89 minutes |
| (Co-op) l4d_farm05_cornfield | Natik* | Normal | 8.42 minutes |
| (Co-op) l4d_garage01_alleys | Natik* | Expert | 17.98 minutes |
| (Co-op) l4d_garage01_alleys | Natik* | Normal | 1.18 minutes |
| (Co-op) l4d_garage02_lots | Natik* | Advanced | 11.95 minutes |
| (Co-op) l4d_garage02_lots | Natik* | Normal | 9.94 minutes |
| (Co-op) l4d_hospital01_apartment | Natik* | Advanced | 2.19 minutes |
| (Co-op) l4d_hospital01_apartment | Natik* | Normal | 2.30 minutes |
| (Co-op) l4d_hospital02_subway | Natik* | Advanced | 8.32 minutes |
| (Co-op) l4d_hospital02_subway | Natik* | Normal | 11.66 seconds |
| (Co-op) l4d_hospital03_sewers | Natik* | Advanced | 10.86 minutes |
| (Co-op) l4d_hospital03_sewers | Natik* | Normal | 8.23 minutes |
| (Co-op) l4d_hospital04_interior | Natik* | Advanced | 7.25 minutes |
| (Co-op) l4d_hospital04_interior | Natik* | Normal | 6.16 minutes |
| (Co-op) l4d_hospital05_rooftop | Natik* | Advanced | 9.83 minutes |
| (Co-op) l4d_hospital05_rooftop | Natik* | Normal | 8.10 minutes |
| (Co-op) l4d_river01_docks | Natik* | Normal | 1.12 minutes |
| (Co-op) l4d_river01_docks | Natik* | Normal | 1.12 minutes |
| (Co-op) l4d_river02_barge | Natik* | Normal | 15.61 minutes |
| (Co-op) l4d_river02_barge | Natik* | Normal | 15.61 minutes |
| (Co-op) l4d_smalltown01_caves | Natik* | Normal | 2.93 minutes |
| (Co-op) l4d_smalltown02_drainage | Natik* | Normal | 3.72 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Natik* | Normal | 5.24 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Natik* | Normal | 6.21 minutes |
| (Co-op) l4d_smalltown05_houseboat | Natik* | Normal | 7.72 minutes |