| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | İmperiaL | Expert | 2.76 minutes |
| (Co-op) l4d_airport01_greenhouse | İmperiaL | Normal | 2.04 minutes |
| (Co-op) l4d_airport02_offices | İmperiaL | Expert | 7.85 minutes |
| (Co-op) l4d_airport02_offices | İmperiaL | Normal | 8.24 minutes |
| (Co-op) l4d_airport03_garage | İmperiaL | Expert | 6.38 minutes |
| (Co-op) l4d_airport03_garage | İmperiaL | Normal | 7.46 minutes |
| (Co-op) l4d_airport04_terminal | İmperiaL | Expert | 5.52 minutes |
| (Co-op) l4d_airport04_terminal | İmperiaL | Advanced | 8.44 minutes |
| (Co-op) l4d_airport04_terminal | İmperiaL | Normal | 9.90 minutes |
| (Co-op) l4d_airport05_runway | İmperiaL | Expert | 6.60 minutes |
| (Co-op) l4d_airport05_runway | İmperiaL | Advanced | 11.38 minutes |
| (Co-op) l4d_airport05_runway | İmperiaL | Normal | 8.04 minutes |
| (Co-op) l4d_farm01_hilltop | İmperiaL | Expert | 3.11 minutes |
| (Co-op) l4d_farm01_hilltop | İmperiaL | Advanced | 4.38 minutes |
| (Co-op) l4d_farm01_hilltop | İmperiaL | Normal | 4.06 minutes |
| (Co-op) l4d_farm02_traintunnel | İmperiaL | Expert | 3.94 minutes |
| (Co-op) l4d_farm02_traintunnel | İmperiaL | Advanced | 8.10 minutes |
| (Co-op) l4d_farm03_bridge | İmperiaL | Expert | 4.62 minutes |
| (Co-op) l4d_farm03_bridge | İmperiaL | Advanced | 7.08 minutes |
| (Co-op) l4d_farm04_barn | İmperiaL | Expert | 3.60 minutes |
| (Co-op) l4d_farm04_barn | İmperiaL | Advanced | 5.77 minutes |
| (Co-op) l4d_farm05_cornfield | İmperiaL | Expert | 8.78 minutes |
| (Co-op) l4d_farm05_cornfield | İmperiaL | Advanced | 9.43 minutes |
| (Co-op) l4d_garage01_alleys | İmperiaL | Expert | 5.57 seconds |
| (Co-op) l4d_garage01_alleys | İmperiaL | Advanced | 14.09 minutes |
| (Co-op) l4d_garage02_lots | İmperiaL | Expert | 9.09 minutes |
| (Co-op) l4d_garage02_lots | İmperiaL | Advanced | 11.48 minutes |
| (Co-op) l4d_hospital01_apartment | İmperiaL | Expert | 2.25 minutes |
| (Co-op) l4d_hospital01_apartment | İmperiaL | Advanced | 2.69 minutes |
| (Co-op) l4d_hospital02_subway | İmperiaL | Expert | 6.85 minutes |
| (Co-op) l4d_hospital02_subway | İmperiaL | Advanced | 10.95 seconds |
| (Co-op) l4d_hospital03_sewers | İmperiaL | Expert | 8.21 minutes |
| (Co-op) l4d_hospital03_sewers | İmperiaL | Advanced | 8.60 minutes |
| (Co-op) l4d_hospital04_interior | İmperiaL | Expert | 5.00 minutes |
| (Co-op) l4d_hospital04_interior | İmperiaL | Advanced | 5.72 minutes |
| (Co-op) l4d_hospital05_rooftop | İmperiaL | Expert | 9.30 minutes |
| (Co-op) l4d_hospital05_rooftop | İmperiaL | Advanced | 10.08 minutes |
| (Co-op) l4d_river01_docks | İmperiaL | Expert | 2.39 seconds |
| (Co-op) l4d_river01_docks | İmperiaL | Expert | 2.39 seconds |
| (Co-op) l4d_river02_barge | İmperiaL | Expert | 8.94 minutes |
| (Co-op) l4d_river02_barge | İmperiaL | Expert | 8.94 minutes |
| (Co-op) l4d_river03_port | İmperiaL | Expert | 12.34 minutes |
| (Co-op) l4d_river03_port | İmperiaL | Expert | 12.34 minutes |
| (Co-op) l4d_river03_port | İmperiaL | Normal | 9.66 minutes |
| (Co-op) l4d_river03_port | İmperiaL | Normal | 9.66 minutes |
| (Co-op) l4d_smalltown01_caves | İmperiaL | Expert | 3.27 minutes |
| (Co-op) l4d_smalltown01_caves | İmperiaL | Advanced | 3.51 minutes |
| (Co-op) l4d_smalltown02_drainage | İmperiaL | Expert | 6.14 minutes |
| (Co-op) l4d_smalltown02_drainage | İmperiaL | Advanced | 6.27 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | İmperiaL | Expert | 5.54 minutes |
| (Co-op) l4d_smalltown04_mainstreet | İmperiaL | Expert | 5.65 minutes |
| (Co-op) l4d_smalltown04_mainstreet | İmperiaL | Advanced | 9.73 minutes |
| (Co-op) l4d_smalltown05_houseboat | İmperiaL | Expert | 10.17 minutes |
| (Co-op) l4d_smalltown05_houseboat | İmperiaL | Advanced | 9.37 minutes |