| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | emerson | Expert | 3.19 minutes |
| (Co-op) l4d_airport02_offices | emerson | Expert | 10.86 minutes |
| (Co-op) l4d_airport03_garage | emerson | Expert | 8.68 minutes |
| (Co-op) l4d_airport04_terminal | emerson | Expert | 7.52 minutes |
| (Co-op) l4d_airport04_terminal | emerson | Advanced | 5.40 minutes |
| (Co-op) l4d_airport05_runway | emerson | Expert | 8.76 minutes |
| (Co-op) l4d_airport05_runway | emerson | Advanced | 8.54 minutes |
| (Co-op) l4d_farm01_hilltop | emerson | Expert | 4.25 minutes |
| (Co-op) l4d_farm02_traintunnel | emerson | Expert | 8.18 minutes |
| (Co-op) l4d_farm02_traintunnel | emerson | Advanced | 6.25 minutes |
| (Co-op) l4d_farm03_bridge | emerson | Advanced | 7.41 minutes |
| (Co-op) l4d_farm04_barn | emerson | Advanced | 5.44 minutes |
| (Co-op) l4d_farm05_cornfield | emerson | Advanced | 10.04 minutes |
| (Co-op) l4d_farm05_cornfield | emerson | Normal | 11.82 minutes |
| (Co-op) l4d_hospital01_apartment | emerson | Expert | 4.26 seconds |
| (Co-op) l4d_hospital02_subway | emerson | Expert | 9.14 minutes |
| (Co-op) l4d_hospital03_sewers | emerson | Expert | 7.88 minutes |
| (Co-op) l4d_hospital03_sewers | emerson | Advanced | 6.56 minutes |
| (Co-op) l4d_hospital04_interior | emerson | Expert | 5.74 minutes |
| (Co-op) l4d_hospital04_interior | emerson | Advanced | 5.27 minutes |
| (Co-op) l4d_hospital05_rooftop | emerson | Advanced | 9.39 minutes |
| (Co-op) l4d_ravenholmwar_2 | emerson | Advanced | 8.84 minutes |
| (Co-op) l4d_ravenholmwar_2 | emerson | Advanced | 8.84 minutes |
| (Co-op) l4d_ravenholmwar_3 | emerson | Advanced | 13.72 minutes |
| (Co-op) l4d_ravenholmwar_3 | emerson | Advanced | 13.72 minutes |
| (Co-op) l4d_river02_barge | emerson | Advanced | 12.49 minutes |
| (Co-op) l4d_river02_barge | emerson | Advanced | 12.49 minutes |
| (Co-op) l4d_river03_port | emerson | Expert | 11.08 minutes |
| (Co-op) l4d_river03_port | emerson | Expert | 11.08 minutes |
| (Co-op) l4d_smalltown01_caves | emerson | Advanced | 1.11 minutes |
| (Co-op) l4d_smalltown02_drainage | emerson | Expert | 5.52 minutes |
| (Co-op) l4d_smalltown02_drainage | emerson | Advanced | 4.29 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | emerson | Advanced | 6.03 minutes |
| (Co-op) l4d_smalltown04_mainstreet | emerson | Advanced | 5.92 minutes |
| (Co-op) l4d_smalltown05_houseboat | emerson | Advanced | 8.30 minutes |
| (Co-op) l4d_stadium3_city1 | emerson | Advanced | 10.50 minutes |
| (Co-op) l4d_stadium3_city1 | emerson | Advanced | 10.50 minutes |
| (Co-op) l4d_stadium4_city2 | emerson | Advanced | 12.36 minutes |
| (Co-op) l4d_stadium4_city2 | emerson | Advanced | 12.36 minutes |