Custom Maps
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_ihm01_forest | William Turner | Normal | 3.90 minutes |
| (Co-op) uf1_boulevard | William Turner | Advanced | 8.35 minutes |
| (Co-op) uf2_rooftops | William Turner | Advanced | 11.49 minutes |
| (Co-op) uf3_harbor | William Turner | Advanced | 8.78 minutes |
| (Co-op) uf4_airfield | William Turner | Advanced | 10.18 minutes |