| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | b4n | Expert | 2.90 minutes |
| (Co-op) l4d_airport02_offices | b4n | Expert | 9.43 minutes |
| (Co-op) l4d_airport02_offices | b4n | Advanced | 9.49 minutes |
| (Co-op) l4d_airport03_garage | b4n | Expert | 10.63 minutes |
| (Co-op) l4d_airport04_terminal | b4n | Expert | 7.49 minutes |
| (Co-op) l4d_airport05_runway | b4n | Expert | 14.31 minutes |
| (Co-op) l4d_airport05_runway | b4n | Advanced | 11.59 minutes |
| (Co-op) l4d_airport05_runway | b4n | Normal | 7.33 minutes |
| (Co-op) l4d_farm01_hilltop | b4n | Expert | 2.90 minutes |
| (Co-op) l4d_farm01_hilltop | b4n | Advanced | 3.45 minutes |
| (Co-op) l4d_farm02_traintunnel | b4n | Expert | 6.69 minutes |
| (Co-op) l4d_farm03_bridge | b4n | Expert | 7.70 minutes |
| (Co-op) l4d_farm04_barn | b4n | Expert | 7.52 minutes |
| (Co-op) l4d_garage01_alleys | b4n | Expert | 10.05 minutes |
| (Co-op) l4d_garage02_lots | b4n | Expert | 14.83 minutes |
| (Co-op) l4d_hospital01_apartment | b4n | Expert | 2.85 minutes |
| (Co-op) l4d_hospital02_subway | b4n | Expert | 9.53 minutes |
| (Co-op) l4d_hospital03_sewers | b4n | Expert | 7.76 minutes |
| (Co-op) l4d_hospital04_interior | b4n | Expert | 7.21 minutes |
| (Co-op) l4d_hospital04_interior | b4n | Normal | 6.24 minutes |
| (Co-op) l4d_hospital05_rooftop | b4n | Normal | 9.74 minutes |
| (Co-op) l4d_river01_docks | b4n | Expert | 10.14 minutes |
| (Co-op) l4d_river01_docks | b4n | Expert | 10.14 minutes |
| (Co-op) l4d_river01_docks | b4n | Advanced | 12.64 minutes |
| (Co-op) l4d_river01_docks | b4n | Advanced | 12.64 minutes |
| (Co-op) l4d_river01_docks | b4n | Normal | 7.57 minutes |
| (Co-op) l4d_river01_docks | b4n | Normal | 7.57 minutes |
| (Co-op) l4d_river02_barge | b4n | Expert | 11.30 minutes |
| (Co-op) l4d_river02_barge | b4n | Expert | 11.30 minutes |
| (Co-op) l4d_river02_barge | b4n | Normal | 9.11 minutes |
| (Co-op) l4d_river02_barge | b4n | Normal | 9.11 minutes |
| (Co-op) l4d_river03_port | b4n | Expert | 12.26 minutes |
| (Co-op) l4d_river03_port | b4n | Expert | 12.26 minutes |
| (Co-op) l4d_river03_port | b4n | Advanced | 16.97 minutes |
| (Co-op) l4d_river03_port | b4n | Advanced | 16.97 minutes |
| (Co-op) l4d_smalltown01_caves | b4n | Normal | 3.77 minutes |
| (Co-op) l4d_smalltown02_drainage | b4n | Normal | 3.97 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | b4n | Expert | 7.78 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | b4n | Normal | 6.69 minutes |
| (Co-op) l4d_smalltown04_mainstreet | b4n | Normal | 6.71 minutes |
| (Co-op) l4d_smalltown05_houseboat | b4n | Advanced | 12.99 minutes |
| (Co-op) l4d_smalltown05_houseboat | b4n | Normal | 11.56 minutes |