No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  Colinsworth | Advanced | 9.88 minutes |
| (Co-op) l4d_hospital03_sewers | Colinsworth | Advanced | 11.33 minutes |
| (Co-op) l4d_hospital04_interior | Colinsworth | Advanced | 9.57 minutes |
| (Co-op) l4d_hospital05_rooftop | Colinsworth | Advanced | 7.86 minutes |
