| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport05_runway | Bulka) | Advanced | 11.51 minutes |
| (Co-op) l4d_farm01_hilltop | Bulka) | Expert | 5.04 minutes |
| (Co-op) l4d_farm01_hilltop | Bulka) | Normal | 5.72 seconds |
| (Co-op) l4d_farm02_traintunnel | Bulka) | Expert | 5.95 minutes |
| (Co-op) l4d_farm02_traintunnel | Bulka) | Normal | 4.99 minutes |
| (Co-op) l4d_farm03_bridge | Bulka) | Expert | 10.19 minutes |
| (Co-op) l4d_farm03_bridge | Bulka) | Normal | 5.41 minutes |
| (Co-op) l4d_farm04_barn | Bulka) | Advanced | 7.54 minutes |
| (Co-op) l4d_farm04_barn | Bulka) | Normal | 4.28 minutes |
| (Co-op) l4d_farm05_cornfield | Bulka) | Expert | 11.42 minutes |
| (Co-op) l4d_farm05_cornfield | Bulka) | Advanced | 10.64 minutes |
| (Co-op) l4d_farm05_cornfield | Bulka) | Normal | 8.01 minutes |
| (Co-op) l4d_garage01_alleys | Bulka) | Advanced | 9.55 minutes |
| (Co-op) l4d_garage02_lots | Bulka) | Advanced | 10.85 minutes |
| (Co-op) l4d_hospital01_apartment | Bulka) | Advanced | 3.32 minutes |
| (Co-op) l4d_hospital02_subway | Bulka) | Advanced | 6.34 minutes |
| (Co-op) l4d_hospital03_sewers | Bulka) | Advanced | 10.52 minutes |
| (Co-op) l4d_hospital04_interior | Bulka) | Advanced | 4.56 minutes |
| (Co-op) l4d_hospital05_rooftop | Bulka) | Advanced | 10.79 minutes |
| (Co-op) l4d_river01_docks | Bulka) | Advanced | 9.53 minutes |
| (Co-op) l4d_river01_docks | Bulka) | Advanced | 9.53 minutes |
| (Co-op) l4d_river02_barge | Bulka) | Advanced | 9.28 minutes |
| (Co-op) l4d_river02_barge | Bulka) | Advanced | 9.28 minutes |
| (Co-op) l4d_river03_port | Bulka) | Advanced | 11.57 minutes |
| (Co-op) l4d_river03_port | Bulka) | Advanced | 11.57 minutes |
| (Co-op) l4d_smalltown01_caves | Bulka) | Advanced | 5.01 minutes |
| (Co-op) l4d_smalltown01_caves | Bulka) | Normal | 3.11 minutes |
| (Co-op) l4d_smalltown02_drainage | Bulka) | Advanced | 6.87 minutes |
| (Co-op) l4d_smalltown02_drainage | Bulka) | Normal | 9.03 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Bulka) | Advanced | 6.66 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Bulka) | Normal | 7.02 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Bulka) | Advanced | 6.26 minutes |
| (Co-op) l4d_smalltown05_houseboat | Bulka) | Advanced | 16.86 minutes |