No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  Bow Tie Billy | Normal | 6.83 minutes |
| (Co-op) l4d_hospital03_sewers | Bow Tie Billy | Normal | 8.96 minutes |
| (Co-op) l4d_hospital04_interior | Bow Tie Billy | Normal | 6.04 minutes |
| (Co-op) l4d_hospital05_rooftop | Bow Tie Billy | Normal | 6.49 minutes |
