No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  SerialKiller | Advanced | 9.24 minutes |
| (Co-op) l4d_hospital05_rooftop | SerialKiller | Advanced | 17.37 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown03_ranchhouse | SerialKiller | Advanced | 5.69 minutes |
| (Co-op) l4d_smalltown04_mainstreet | SerialKiller | Advanced | 6.95 minutes |
Crash Course
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_garage01_alleys | SerialKiller | Advanced | 13.72 minutes |
