No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  Lefse and Chill | Expert | 13.31 minutes |
| (Co-op) l4d_hospital03_sewers | Lefse and Chill | Expert | 7.88 minutes |
| (Co-op) l4d_hospital04_interior | Lefse and Chill | Expert | 5.53 minutes |
| (Co-op) l4d_hospital05_rooftop | Lefse and Chill | Expert | 6.79 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport02_offices | Lefse and Chill | Expert | 13.41 minutes |
| (Co-op) l4d_airport03_garage | Lefse and Chill | Expert | 15.67 minutes |
| (Co-op) l4d_airport05_runway | Lefse and Chill | Expert | 7.02 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown02_drainage | Lefse and Chill | Expert | 12.60 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Lefse and Chill | Expert | 8.80 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Lefse and Chill | Expert | 12.08 minutes |
| (Co-op) l4d_smalltown05_houseboat | Lefse and Chill | Expert | 21.37 minutes |
