No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  PrimordialSquish | Normal | 2.17 minutes |
| (Co-op) l4d_hospital02_subway | PrimordialSquish | Normal | 5.87 minutes |
| (Co-op) l4d_hospital03_sewers | PrimordialSquish | Normal | 7.96 minutes |
| (Co-op) l4d_hospital04_interior | PrimordialSquish | Normal | 4.61 minutes |
| (Co-op) l4d_hospital05_rooftop | PrimordialSquish | Normal | 7.60 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport05_runway | PrimordialSquish | Advanced | 7.85 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | PrimordialSquish | Normal | 2.94 minutes |
| (Co-op) l4d_smalltown02_drainage | PrimordialSquish | Normal | 5.41 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | PrimordialSquish | Normal | 7.73 minutes |
| (Co-op) l4d_smalltown04_mainstreet | PrimordialSquish | Normal | 7.64 minutes |
Crash Course
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_garage02_lots | PrimordialSquish | Normal | 10.85 minutes |
