Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_149_1 | Tetris | Normal | 14.79 minutes |
| (Co-op) l4d_149_2 | Tetris | Normal | 12.30 minutes |
| (Co-op) l4d_149_3 | Tetris | Normal | 12.96 minutes |
| (Co-op) l4d_149_4 | Tetris | Normal | 11.06 minutes |
| (Co-op) l4d_149_5 | Tetris | Normal | 8.35 minutes |