Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_149_1 | Dunxco | Advanced | 17.79 minutes |
| (Co-op) l4d_149_2 | Dunxco | Advanced | 18.17 minutes |
| (Co-op) l4d_149_3 | Dunxco | Advanced | 15.80 minutes |
| (Co-op) l4d_149_4 | Dunxco | Advanced | 10.91 minutes |
| (Co-op) l4d_149_5 | Dunxco | Advanced | 9.10 minutes |