Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d2_bts01_forest | Mirk-xD | Expert | 17.30 minutes |
| (Co-op) l4d2_bts02_station | Mirk-xD | Expert | 15.27 minutes |
| (Co-op) l4d2_bts04_cinema | Mirk-xD | Expert | 11.46 minutes |
| (Co-op) l4d2_bts05_church | Mirk-xD | Expert | 15.17 minutes |
| (Co-op) l4d2_stadium1_apartment | Mirk-xD | Expert | 11.34 minutes |
| (Co-op) l4d2_stadium3_city1 | Mirk-xD | Expert | 12.62 minutes |
| (Co-op) l4d2_stadium5_stadium | Mirk-xD | Expert | 9.95 minutes |
| (Co-op) l4d_ihm01_forest | Mirk-xD | Advanced | 6.83 minutes |
| (Co-op) l4d_ihm02_manor | Mirk-xD | Advanced | 9.21 minutes |
| (Co-op) l4d_ihm03_underground | Mirk-xD | Advanced | 18.64 minutes |
| (Co-op) l4d_ihm04_lumberyard | Mirk-xD | Advanced | 14.62 minutes |
| (Co-op) l4d_ihm05_lakeside | Mirk-xD | Advanced | 14.90 minutes |