| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | NIETO | Advanced | 3.01 minutes |
| (Co-op) l4d_airport01_greenhouse | NIETO | Normal | 2.34 minutes |
| (Co-op) l4d_airport02_offices | NIETO | Expert | 9.64 minutes |
| (Co-op) l4d_airport02_offices | NIETO | Advanced | 15.11 minutes |
| (Co-op) l4d_airport02_offices | NIETO | Normal | 9.07 minutes |
| (Co-op) l4d_airport03_garage | NIETO | Advanced | 10.71 minutes |
| (Co-op) l4d_airport03_garage | NIETO | Normal | 12.26 minutes |
| (Co-op) l4d_airport04_terminal | NIETO | Advanced | 6.75 minutes |
| (Co-op) l4d_airport04_terminal | NIETO | Normal | 6.51 minutes |
| (Co-op) l4d_airport05_runway | NIETO | Expert | 10.14 minutes |
| (Co-op) l4d_airport05_runway | NIETO | Advanced | 8.07 minutes |
| (Co-op) l4d_city17_05 | NIETO | Normal | 9.28 minutes |
| (Co-op) l4d_city17_05 | NIETO | Normal | 9.28 minutes |
| (Co-op) l4d_farm01_hilltop | NIETO | Expert | 4.37 minutes |
| (Co-op) l4d_farm01_hilltop | NIETO | Advanced | 4.55 minutes |
| (Co-op) l4d_farm02_traintunnel | NIETO | Expert | 10.20 minutes |
| (Co-op) l4d_farm02_traintunnel | NIETO | Advanced | 8.38 minutes |
| (Co-op) l4d_farm02_traintunnel | NIETO | Normal | 6.74 minutes |
| (Co-op) l4d_farm03_bridge | NIETO | Expert | 7.11 minutes |
| (Co-op) l4d_farm03_bridge | NIETO | Advanced | 9.20 minutes |
| (Co-op) l4d_farm03_bridge | NIETO | Normal | 7.12 minutes |
| (Co-op) l4d_farm04_barn | NIETO | Expert | 5.79 minutes |
| (Co-op) l4d_farm04_barn | NIETO | Advanced | 6.71 minutes |
| (Co-op) l4d_farm04_barn | NIETO | Normal | 4.40 minutes |
| (Co-op) l4d_farm05_cornfield | NIETO | Expert | 16.71 minutes |
| (Co-op) l4d_farm05_cornfield | NIETO | Advanced | 11.38 minutes |
| (Co-op) l4d_farm05_cornfield | NIETO | Normal | 8.84 minutes |
| (Co-op) l4d_garage01_alleys | NIETO | Advanced | 12.23 seconds |
| (Co-op) l4d_garage02_lots | NIETO | Expert | 15.45 minutes |
| (Co-op) l4d_garage02_lots | NIETO | Advanced | 17.65 minutes |
| (Co-op) l4d_hospital01_apartment | NIETO | Expert | 2.63 minutes |
| (Co-op) l4d_hospital01_apartment | NIETO | Advanced | 20.59 seconds |
| (Co-op) l4d_hospital02_subway | NIETO | Expert | 8.51 minutes |
| (Co-op) l4d_hospital02_subway | NIETO | Advanced | 8.27 minutes |
| (Co-op) l4d_hospital03_sewers | NIETO | Expert | 12.28 minutes |
| (Co-op) l4d_hospital03_sewers | NIETO | Advanced | 9.73 minutes |
| (Co-op) l4d_hospital04_interior | NIETO | Expert | 7.24 minutes |
| (Co-op) l4d_hospital04_interior | NIETO | Advanced | 6.76 minutes |
| (Co-op) l4d_hospital04_interior | NIETO | Normal | 52.11 seconds |
| (Co-op) l4d_hospital05_rooftop | NIETO | Expert | 9.02 minutes |
| (Co-op) l4d_hospital05_rooftop | NIETO | Advanced | 13.71 minutes |
| (Co-op) l4d_noprecinct02_train | NIETO | Advanced | 11.02 minutes |
| (Co-op) l4d_noprecinct02_train | NIETO | Advanced | 11.02 minutes |
| (Co-op) l4d_noprecinct03_clubd | NIETO | Advanced | 16.02 minutes |
| (Co-op) l4d_noprecinct03_clubd | NIETO | Advanced | 16.02 minutes |
| (Co-op) l4d_noprecinct04_precinct | NIETO | Advanced | 10.29 minutes |
| (Co-op) l4d_noprecinct04_precinct | NIETO | Advanced | 10.29 minutes |
| (Co-op) l4d_river01_docks | NIETO | Expert | 13.02 seconds |
| (Co-op) l4d_river01_docks | NIETO | Expert | 13.02 seconds |
| (Co-op) l4d_river01_docks | NIETO | Advanced | 11.22 minutes |
| (Co-op) l4d_river01_docks | NIETO | Advanced | 11.22 minutes |
| (Co-op) l4d_river02_barge | NIETO | Advanced | 7.02 minutes |
| (Co-op) l4d_river02_barge | NIETO | Advanced | 7.02 minutes |
| (Co-op) l4d_river02_barge | NIETO | Normal | 7.94 minutes |
| (Co-op) l4d_river02_barge | NIETO | Normal | 7.94 minutes |
| (Co-op) l4d_river03_port | NIETO | Expert | 13.86 minutes |
| (Co-op) l4d_river03_port | NIETO | Expert | 13.86 minutes |
| (Co-op) l4d_river03_port | NIETO | Advanced | 9.33 minutes |
| (Co-op) l4d_river03_port | NIETO | Advanced | 9.33 minutes |
| (Co-op) l4d_river03_port | NIETO | Normal | 9.73 minutes |
| (Co-op) l4d_river03_port | NIETO | Normal | 9.73 minutes |
| (Co-op) l4d_smalltown01_caves | NIETO | Expert | 5.55 minutes |
| (Co-op) l4d_smalltown01_caves | NIETO | Advanced | 47.53 seconds |
| (Co-op) l4d_smalltown02_drainage | NIETO | Advanced | 7.15 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | NIETO | Expert | 7.18 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | NIETO | Advanced | 7.81 minutes |
| (Co-op) l4d_smalltown04_mainstreet | NIETO | Expert | 10.23 minutes |
| (Co-op) l4d_smalltown04_mainstreet | NIETO | Advanced | 8.79 minutes |
| (Co-op) l4d_smalltown05_houseboat | NIETO | Expert | 22.64 minutes |
| (Co-op) l4d_smalltown05_houseboat | NIETO | Advanced | 9.48 minutes |