No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  BILL | Advanced | 3.39 minutes |
| (Co-op) l4d_hospital01_apartment | BILL | Normal | 3.85 minutes |
| (Co-op) l4d_hospital02_subway | BILL | Expert | 13.19 minutes |
| (Co-op) l4d_hospital02_subway | BILL | Advanced | 20.37 minutes |
| (Co-op) l4d_hospital02_subway | BILL | Normal | 8.13 minutes |
| (Co-op) l4d_hospital03_sewers | BILL | Expert | 9.45 minutes |
| (Co-op) l4d_hospital03_sewers | BILL | Normal | 6.66 minutes |
| (Co-op) l4d_hospital04_interior | BILL | Normal | 5.03 minutes |
| (Co-op) l4d_hospital05_rooftop | BILL | Normal | 12.63 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | BILL | Advanced | 3.43 minutes |
| (Co-op) l4d_airport02_offices | BILL | Advanced | 11.29 minutes |
| (Co-op) l4d_airport03_garage | BILL | Advanced | 11.61 minutes |
| (Co-op) l4d_airport04_terminal | BILL | Advanced | 10.34 minutes |
| (Co-op) l4d_airport05_runway | BILL | Advanced | 9.52 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | BILL | Normal | 5.42 minutes |
| (Co-op) l4d_smalltown02_drainage | BILL | Normal | 7.54 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | BILL | Normal | 8.94 minutes |
| (Co-op) l4d_smalltown04_mainstreet | BILL | Normal | 11.94 minutes |
| (Co-op) l4d_smalltown05_houseboat | BILL | Normal | 11.91 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | BILL | Advanced | 6.21 minutes |
Crash Course
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_garage02_lots | BILL | Advanced | 12.73 minutes |
