Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | 快乐一族 | Normal | 6.56 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | 快乐一族 | Normal | 21.77 seconds |
| (Co-op) l4d_farm02_traintunnel | 快乐一族 | Advanced | 6.27 minutes |
| (Co-op) l4d_farm03_bridge | 快乐一族 | Advanced | 6.66 minutes |
| (Co-op) l4d_farm04_barn | 快乐一族 | Advanced | 5.57 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport02_offices | 快乐一族 | Normal | 6.56 minutes |
| (Co-op) l4d_farm01_hilltop | 快乐一族 | Normal | 21.77 seconds |
| (Co-op) l4d_farm02_traintunnel | 快乐一族 | Advanced | 6.27 minutes |
| (Co-op) l4d_farm03_bridge | 快乐一族 | Advanced | 6.66 minutes |
| (Co-op) l4d_farm04_barn | 快乐一族 | Advanced | 5.57 minutes |