No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  L o n e l y | Advanced | 7.53 minutes |
| (Co-op) l4d_hospital03_sewers | L o n e l y | Advanced | 10.17 minutes |
| (Co-op) l4d_hospital04_interior | L o n e l y | Advanced | 6.78 minutes |
| (Co-op) l4d_hospital05_rooftop | L o n e l y | Advanced | 7.88 minutes |
