No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  Dimass | Advanced | 2.54 minutes |
| (Co-op) l4d_hospital01_apartment | Dimass | Normal | 2.29 minutes |
| (Co-op) l4d_hospital02_subway | Dimass | Expert | 9.86 minutes |
| (Co-op) l4d_hospital02_subway | Dimass | Advanced | 6.77 minutes |
| (Co-op) l4d_hospital02_subway | Dimass | Normal | 5.81 minutes |
| (Co-op) l4d_hospital03_sewers | Dimass | Expert | 8.01 minutes |
| (Co-op) l4d_hospital03_sewers | Dimass | Advanced | 5.45 minutes |
| (Co-op) l4d_hospital03_sewers | Dimass | Normal | 3.27 minutes |
| (Co-op) l4d_hospital04_interior | Dimass | Expert | 5.21 minutes |
| (Co-op) l4d_hospital04_interior | Dimass | Advanced | 4.21 minutes |
| (Co-op) l4d_hospital04_interior | Dimass | Normal | 4.75 minutes |
| (Co-op) l4d_hospital05_rooftop | Dimass | Expert | 7.92 minutes |
| (Co-op) l4d_hospital05_rooftop | Dimass | Advanced | 9.80 minutes |
| (Co-op) l4d_hospital05_rooftop | Dimass | Normal | 10.16 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | Dimass | Expert | 3.77 minutes |
| (Co-op) l4d_airport01_greenhouse | Dimass | Advanced | 3.74 minutes |
| (Co-op) l4d_airport01_greenhouse | Dimass | Normal | 2.97 minutes |
| (Co-op) l4d_airport02_offices | Dimass | Expert | 11.57 minutes |
| (Co-op) l4d_airport02_offices | Dimass | Advanced | 6.15 minutes |
| (Co-op) l4d_airport02_offices | Dimass | Normal | 4.39 minutes |
| (Co-op) l4d_airport03_garage | Dimass | Advanced | 9.93 minutes |
| (Co-op) l4d_airport03_garage | Dimass | Normal | 7.30 minutes |
| (Co-op) l4d_airport04_terminal | Dimass | Advanced | 4.02 minutes |
| (Co-op) l4d_airport04_terminal | Dimass | Normal | 3.08 minutes |
| (Co-op) l4d_airport05_runway | Dimass | Advanced | 6.01 minutes |
| (Co-op) l4d_airport05_runway | Dimass | Normal | 7.38 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | Dimass | Advanced | 3.30 minutes |
| (Co-op) l4d_smalltown01_caves | Dimass | Normal | 2.70 minutes |
| (Co-op) l4d_smalltown02_drainage | Dimass | Expert | 8.19 minutes |
| (Co-op) l4d_smalltown02_drainage | Dimass | Advanced | 3.71 minutes |
| (Co-op) l4d_smalltown02_drainage | Dimass | Normal | 4.44 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Dimass | Expert | 3.71 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Dimass | Advanced | 5.45 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Dimass | Normal | 3.74 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Dimass | Expert | 8.47 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Dimass | Advanced | 5.50 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Dimass | Normal | 4.20 minutes |
| (Co-op) l4d_smalltown05_houseboat | Dimass | Advanced | 12.73 minutes |
| (Co-op) l4d_smalltown05_houseboat | Dimass | Normal | 10.08 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | Dimass | Expert | 7.61 minutes |
| (Co-op) l4d_farm01_hilltop | Dimass | Advanced | 2.81 minutes |
| (Co-op) l4d_farm01_hilltop | Dimass | Normal | 2.13 minutes |
| (Co-op) l4d_farm02_traintunnel | Dimass | Advanced | 5.23 minutes |
| (Co-op) l4d_farm02_traintunnel | Dimass | Normal | 4.30 minutes |
| (Co-op) l4d_farm03_bridge | Dimass | Advanced | 5.83 minutes |
| (Co-op) l4d_farm03_bridge | Dimass | Normal | 3.17 minutes |
| (Co-op) l4d_farm04_barn | Dimass | Advanced | 3.26 minutes |
| (Co-op) l4d_farm04_barn | Dimass | Normal | 2.14 minutes |
| (Co-op) l4d_farm05_cornfield | Dimass | Advanced | 9.43 minutes |
| (Co-op) l4d_farm05_cornfield | Dimass | Normal | 9.76 minutes |
