No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  Viper | Normal | 3.71 minutes |
| (Co-op) l4d_hospital02_subway | Viper | Normal | 9.38 minutes |
| (Co-op) l4d_hospital03_sewers | Viper | Advanced | 11.16 minutes |
| (Co-op) l4d_hospital03_sewers | Viper | Normal | 9.54 minutes |
| (Co-op) l4d_hospital04_interior | Viper | Normal | 7.11 minutes |
| (Co-op) l4d_hospital05_rooftop | Viper | Expert | 14.35 minutes |
| (Co-op) l4d_hospital05_rooftop | Viper | Normal | 8.20 minutes |
