| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Houston | Expert | 1.97 minutes |
| (Co-op) l4d_airport01_greenhouse | Houston | Advanced | 2.05 seconds |
| (Co-op) l4d_airport02_offices | Houston | Expert | 6.60 minutes |
| (Co-op) l4d_airport02_offices | Houston | Advanced | 13.62 seconds |
| (Co-op) l4d_airport03_garage | Houston | Expert | 6.96 minutes |
| (Co-op) l4d_airport03_garage | Houston | Advanced | 7.91 minutes |
| (Co-op) l4d_airport04_terminal | Houston | Expert | 4.41 minutes |
| (Co-op) l4d_airport04_terminal | Houston | Advanced | 13.25 seconds |
| (Co-op) l4d_airport05_runway | Houston | Expert | 5.86 minutes |
| (Co-op) l4d_airport05_runway | Houston | Advanced | 6.27 minutes |
| (Co-op) l4d_farm01_hilltop | Houston | Expert | 19.63 seconds |
| (Co-op) l4d_farm01_hilltop | Houston | Advanced | 11.28 seconds |
| (Co-op) l4d_farm02_traintunnel | Houston | Expert | 3.81 minutes |
| (Co-op) l4d_farm02_traintunnel | Houston | Advanced | 58.07 seconds |
| (Co-op) l4d_farm03_bridge | Houston | Expert | 4.85 minutes |
| (Co-op) l4d_farm03_bridge | Houston | Advanced | 5.44 minutes |
| (Co-op) l4d_farm04_barn | Houston | Expert | 2.89 minutes |
| (Co-op) l4d_farm04_barn | Houston | Advanced | 3.80 minutes |
| (Co-op) l4d_farm05_cornfield | Houston | Expert | 7.06 minutes |
| (Co-op) l4d_farm05_cornfield | Houston | Advanced | 8.47 minutes |
| (Co-op) l4d_garage01_alleys | Houston | Expert | 1.65 seconds |
| (Co-op) l4d_garage01_alleys | Houston | Advanced | 10.38 minutes |
| (Co-op) l4d_garage02_lots | Houston | Expert | 8.85 minutes |
| (Co-op) l4d_garage02_lots | Houston | Advanced | 13.40 minutes |
| (Co-op) l4d_hospital01_apartment | Houston | Expert | 20.02 seconds |
| (Co-op) l4d_hospital01_apartment | Houston | Advanced | 2.58 minutes |
| (Co-op) l4d_hospital02_subway | Houston | Expert | 5.58 minutes |
| (Co-op) l4d_hospital02_subway | Houston | Advanced | 1.72 minutes |
| (Co-op) l4d_hospital03_sewers | Houston | Expert | 7.08 minutes |
| (Co-op) l4d_hospital03_sewers | Houston | Advanced | 7.89 minutes |
| (Co-op) l4d_hospital04_interior | Houston | Expert | 5.53 minutes |
| (Co-op) l4d_hospital04_interior | Houston | Advanced | 5.86 minutes |
| (Co-op) l4d_hospital05_rooftop | Houston | Expert | 6.72 minutes |
| (Co-op) l4d_hospital05_rooftop | Houston | Advanced | 8.64 minutes |
| (Co-op) l4d_river01_docks | Houston | Expert | 48.13 seconds |
| (Co-op) l4d_river01_docks | Houston | Expert | 48.13 seconds |
| (Co-op) l4d_river01_docks | Houston | Advanced | 31.68 seconds |
| (Co-op) l4d_river01_docks | Houston | Advanced | 31.68 seconds |
| (Co-op) l4d_river01_docks | Houston | Normal | 11.00 seconds |
| (Co-op) l4d_river01_docks | Houston | Normal | 11.00 seconds |
| (Co-op) l4d_river02_barge | Houston | Expert | 9.12 minutes |
| (Co-op) l4d_river02_barge | Houston | Expert | 9.12 minutes |
| (Co-op) l4d_river02_barge | Houston | Advanced | 10.64 minutes |
| (Co-op) l4d_river02_barge | Houston | Advanced | 10.64 minutes |
| (Co-op) l4d_river03_port | Houston | Expert | 6.51 minutes |
| (Co-op) l4d_river03_port | Houston | Expert | 6.51 minutes |
| (Co-op) l4d_river03_port | Houston | Advanced | 10.11 minutes |
| (Co-op) l4d_river03_port | Houston | Advanced | 10.11 minutes |
| (Co-op) l4d_smalltown01_caves | Houston | Expert | 13.23 seconds |
| (Co-op) l4d_smalltown01_caves | Houston | Advanced | 12.86 seconds |
| (Co-op) l4d_smalltown02_drainage | Houston | Expert | 3.46 minutes |
| (Co-op) l4d_smalltown02_drainage | Houston | Advanced | 5.91 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Houston | Expert | 5.77 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Houston | Advanced | 5.61 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Houston | Expert | 5.82 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Houston | Advanced | 6.38 minutes |
| (Co-op) l4d_smalltown05_houseboat | Houston | Expert | 9.83 minutes |
| (Co-op) l4d_smalltown05_houseboat | Houston | Advanced | 9.29 minutes |