| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | † R | Expert | 3.00 minutes |
| (Co-op) l4d_airport02_offices | † R | Expert | 7.86 minutes |
| (Co-op) l4d_airport02_offices | † R | Advanced | 11.38 minutes |
| (Co-op) l4d_airport03_garage | † R | Expert | 9.02 minutes |
| (Co-op) l4d_airport03_garage | † R | Advanced | 9.71 minutes |
| (Co-op) l4d_airport04_terminal | † R | Expert | 5.85 minutes |
| (Co-op) l4d_airport04_terminal | † R | Advanced | 5.86 minutes |
| (Co-op) l4d_airport05_runway | † R | Expert | 10.49 minutes |
| (Co-op) l4d_airport05_runway | † R | Advanced | 10.12 minutes |
| (Co-op) l4d_farm01_hilltop | † R | Advanced | 4.65 minutes |
| (Co-op) l4d_farm02_traintunnel | † R | Advanced | 6.07 minutes |
| (Co-op) l4d_farm03_bridge | † R | Advanced | 10.28 minutes |
| (Co-op) l4d_farm04_barn | † R | Advanced | 6.87 minutes |
| (Co-op) l4d_farm05_cornfield | † R | Advanced | 12.77 minutes |
| (Co-op) l4d_hospital01_apartment | † R | Expert | 3.26 minutes |
| (Co-op) l4d_hospital01_apartment | † R | Advanced | 3.13 minutes |
| (Co-op) l4d_hospital02_subway | † R | Advanced | 8.22 minutes |
| (Co-op) l4d_hospital03_sewers | † R | Advanced | 8.92 minutes |
| (Co-op) l4d_hospital04_interior | † R | Advanced | 8.03 minutes |
| (Co-op) l4d_hospital05_rooftop | † R | Advanced | 9.68 minutes |
| (Co-op) l4d_river01_docks | † R | Advanced | 8.70 minutes |
| (Co-op) l4d_river01_docks | † R | Advanced | 8.70 minutes |
| (Co-op) l4d_river02_barge | † R | Advanced | 13.85 minutes |
| (Co-op) l4d_river02_barge | † R | Advanced | 13.85 minutes |
| (Co-op) l4d_smalltown02_drainage | † R | Advanced | 4.08 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | † R | Advanced | 5.85 minutes |
| (Co-op) l4d_smalltown04_mainstreet | † R | Advanced | 7.14 minutes |
| (Co-op) l4d_smalltown05_houseboat | † R | Advanced | 14.55 minutes |