| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Extrawelt | Expert | 2.41 minutes |
| (Co-op) l4d_airport01_greenhouse | Extrawelt | Advanced | 2.13 minutes |
| (Co-op) l4d_airport01_greenhouse | Extrawelt | Normal | 2.72 minutes |
| (Co-op) l4d_airport02_offices | Extrawelt | Expert | 7.44 minutes |
| (Co-op) l4d_airport02_offices | Extrawelt | Advanced | 6.45 minutes |
| (Co-op) l4d_airport02_offices | Extrawelt | Normal | 7.22 minutes |
| (Co-op) l4d_airport03_garage | Extrawelt | Expert | 8.50 minutes |
| (Co-op) l4d_airport03_garage | Extrawelt | Advanced | 7.31 minutes |
| (Co-op) l4d_airport03_garage | Extrawelt | Normal | 11.07 minutes |
| (Co-op) l4d_airport04_terminal | Extrawelt | Expert | 5.40 minutes |
| (Co-op) l4d_airport04_terminal | Extrawelt | Advanced | 4.50 minutes |
| (Co-op) l4d_airport04_terminal | Extrawelt | Normal | 4.87 minutes |
| (Co-op) l4d_airport05_runway | Extrawelt | Expert | 6.43 minutes |
| (Co-op) l4d_airport05_runway | Extrawelt | Advanced | 6.29 minutes |
| (Co-op) l4d_airport05_runway | Extrawelt | Normal | 7.75 minutes |
| (Co-op) l4d_farm01_hilltop | Extrawelt | Expert | 2.84 minutes |
| (Co-op) l4d_farm01_hilltop | Extrawelt | Advanced | 3.09 minutes |
| (Co-op) l4d_farm02_traintunnel | Extrawelt | Expert | 5.79 minutes |
| (Co-op) l4d_farm02_traintunnel | Extrawelt | Advanced | 17.59 seconds |
| (Co-op) l4d_farm02_traintunnel | Extrawelt | Normal | 12.17 minutes |
| (Co-op) l4d_farm03_bridge | Extrawelt | Expert | 6.95 minutes |
| (Co-op) l4d_farm03_bridge | Extrawelt | Advanced | 6.40 minutes |
| (Co-op) l4d_farm03_bridge | Extrawelt | Normal | 9.64 minutes |
| (Co-op) l4d_farm04_barn | Extrawelt | Expert | 3.96 minutes |
| (Co-op) l4d_farm04_barn | Extrawelt | Advanced | 3.19 minutes |
| (Co-op) l4d_farm05_cornfield | Extrawelt | Expert | 9.64 minutes |
| (Co-op) l4d_farm05_cornfield | Extrawelt | Advanced | 8.78 minutes |
| (Co-op) l4d_garage01_alleys | Extrawelt | Expert | 9.34 seconds |
| (Co-op) l4d_garage01_alleys | Extrawelt | Advanced | 13.86 minutes |
| (Co-op) l4d_garage02_lots | Extrawelt | Expert | 10.04 minutes |
| (Co-op) l4d_garage02_lots | Extrawelt | Advanced | 10.75 minutes |
| (Co-op) l4d_hospital01_apartment | Extrawelt | Expert | 2.41 minutes |
| (Co-op) l4d_hospital01_apartment | Extrawelt | Advanced | 2.99 minutes |
| (Co-op) l4d_hospital02_subway | Extrawelt | Expert | 6.55 minutes |
| (Co-op) l4d_hospital02_subway | Extrawelt | Advanced | 6.67 minutes |
| (Co-op) l4d_hospital03_sewers | Extrawelt | Expert | 8.02 minutes |
| (Co-op) l4d_hospital03_sewers | Extrawelt | Advanced | 6.52 minutes |
| (Co-op) l4d_hospital04_interior | Extrawelt | Expert | 5.29 minutes |
| (Co-op) l4d_hospital04_interior | Extrawelt | Advanced | 4.92 minutes |
| (Co-op) l4d_hospital05_rooftop | Extrawelt | Expert | 6.88 minutes |
| (Co-op) l4d_hospital05_rooftop | Extrawelt | Advanced | 8.54 minutes |
| (Co-op) l4d_river01_docks | Extrawelt | Expert | 25.90 seconds |
| (Co-op) l4d_river01_docks | Extrawelt | Expert | 25.90 seconds |
| (Co-op) l4d_river01_docks | Extrawelt | Advanced | 7.49 minutes |
| (Co-op) l4d_river01_docks | Extrawelt | Advanced | 7.49 minutes |
| (Co-op) l4d_river01_docks | Extrawelt | Normal | 10.39 minutes |
| (Co-op) l4d_river01_docks | Extrawelt | Normal | 10.39 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Expert | 8.48 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Expert | 8.48 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Advanced | 9.87 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Advanced | 9.87 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Normal | 9.26 minutes |
| (Co-op) l4d_river02_barge | Extrawelt | Normal | 9.26 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Expert | 10.01 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Expert | 10.01 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Advanced | 7.86 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Advanced | 7.86 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Normal | 8.55 minutes |
| (Co-op) l4d_river03_port | Extrawelt | Normal | 8.55 minutes |
| (Co-op) l4d_smalltown01_caves | Extrawelt | Expert | 3.08 minutes |
| (Co-op) l4d_smalltown01_caves | Extrawelt | Advanced | 3.18 minutes |
| (Co-op) l4d_smalltown02_drainage | Extrawelt | Expert | 4.46 minutes |
| (Co-op) l4d_smalltown02_drainage | Extrawelt | Advanced | 3.79 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Extrawelt | Expert | 6.00 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Extrawelt | Advanced | 5.22 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Extrawelt | Expert | 6.04 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Extrawelt | Advanced | 6.15 minutes |
| (Co-op) l4d_smalltown05_houseboat | Extrawelt | Expert | 9.56 minutes |
| (Co-op) l4d_smalltown05_houseboat | Extrawelt | Advanced | 9.16 minutes |
| (Co-op) l4d_smalltown05_houseboat | Extrawelt | Normal | 8.99 minutes |