Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_149_1 | ull50kk | Normal | 10.47 minutes |
| (Co-op) l4d_149_2 | ull50kk | Normal | 10.48 minutes |
| (Co-op) l4d_149_3 | ull50kk | Normal | 10.32 minutes |
| (Co-op) l4d_149_4 | ull50kk | Normal | 9.89 minutes |
| (Co-op) l4d_149_5 | ull50kk | Normal | 8.87 minutes |