| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | i r nub | Normal | 1.78 minutes |
| (Co-op) l4d_airport02_offices | i r nub | Normal | 9.20 minutes |
| (Co-op) l4d_airport03_garage | i r nub | Normal | 7.99 minutes |
| (Co-op) l4d_airport04_terminal | i r nub | Advanced | 4.59 minutes |
| (Co-op) l4d_airport04_terminal | i r nub | Normal | 5.09 minutes |
| (Co-op) l4d_farm01_hilltop | i r nub | Advanced | 3.80 minutes |
| (Co-op) l4d_farm02_traintunnel | i r nub | Advanced | 5.04 minutes |
| (Co-op) l4d_farm02_traintunnel | i r nub | Normal | 4.17 minutes |
| (Co-op) l4d_farm03_bridge | i r nub | Advanced | 6.27 minutes |
| (Co-op) l4d_farm03_bridge | i r nub | Normal | 5.88 minutes |
| (Co-op) l4d_farm04_barn | i r nub | Advanced | 4.60 minutes |
| (Co-op) l4d_farm04_barn | i r nub | Normal | 2.65 minutes |
| (Co-op) l4d_farm05_cornfield | i r nub | Advanced | 7.86 minutes |
| (Co-op) l4d_garage01_alleys | i r nub | Advanced | 15.81 minutes |
| (Co-op) l4d_garage02_lots | i r nub | Advanced | 13.27 minutes |
| (Co-op) l4d_hospital01_apartment | i r nub | Advanced | 2.44 minutes |
| (Co-op) l4d_hospital02_subway | i r nub | Advanced | 6.27 minutes |
| (Co-op) l4d_hospital03_sewers | i r nub | Advanced | 6.11 minutes |
| (Co-op) l4d_hospital04_interior | i r nub | Advanced | 4.87 minutes |
| (Co-op) l4d_hospital05_rooftop | i r nub | Advanced | 7.56 minutes |
| (Co-op) l4d_hospital05_rooftop | i r nub | Normal | 6.44 minutes |
| (Co-op) l4d_river01_docks | i r nub | Advanced | 7.21 seconds |
| (Co-op) l4d_river01_docks | i r nub | Advanced | 7.21 seconds |
| (Co-op) l4d_river01_docks | i r nub | Normal | 10.14 minutes |
| (Co-op) l4d_river01_docks | i r nub | Normal | 10.14 minutes |
| (Co-op) l4d_river02_barge | i r nub | Advanced | 11.67 minutes |
| (Co-op) l4d_river02_barge | i r nub | Advanced | 11.67 minutes |
| (Co-op) l4d_river02_barge | i r nub | Normal | 13.16 seconds |
| (Co-op) l4d_river02_barge | i r nub | Normal | 13.16 seconds |
| (Co-op) l4d_river03_port | i r nub | Advanced | 7.86 minutes |
| (Co-op) l4d_river03_port | i r nub | Advanced | 7.86 minutes |
| (Co-op) l4d_river03_port | i r nub | Normal | 6.01 minutes |
| (Co-op) l4d_river03_port | i r nub | Normal | 6.01 minutes |
| (Co-op) l4d_smalltown01_caves | i r nub | Advanced | 3.71 minutes |
| (Co-op) l4d_smalltown01_caves | i r nub | Normal | 1.57 minutes |
| (Co-op) l4d_smalltown02_drainage | i r nub | Advanced | 4.52 minutes |
| (Co-op) l4d_smalltown02_drainage | i r nub | Normal | 4.55 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | i r nub | Advanced | 1.58 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | i r nub | Normal | 4.69 minutes |
| (Co-op) l4d_smalltown04_mainstreet | i r nub | Advanced | 7.73 minutes |
| (Co-op) l4d_smalltown04_mainstreet | i r nub | Normal | 5.73 minutes |
| (Co-op) l4d_smalltown05_houseboat | i r nub | Normal | 8.09 minutes |