Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_149_1 | Impaler4 | Normal | 12.23 minutes |
| (Co-op) l4d_149_2 | Impaler4 | Normal | 19.74 minutes |
| (Co-op) l4d_149_3 | Impaler4 | Normal | 16.24 minutes |
| (Co-op) l4d_149_4 | Impaler4 | Normal | 13.92 minutes |
| (Co-op) l4d_149_5 | Impaler4 | Normal | 7.91 minutes |