Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d2_city17_01 | Maskburk | Advanced | 4.49 minutes |
| (Co-op) l4d2_city17_02 | Maskburk | Advanced | 8.15 minutes |
| (Co-op) l4d2_city17_03 | Maskburk | Advanced | 9.20 minutes |
| (Co-op) l4d2_city17_04 | Maskburk | Advanced | 11.96 minutes |