Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | COBRA | Normal | 2.77 minutes |
| (Co-op) l4d_airport02_offices | COBRA | Normal | 7.36 minutes |
| (Co-op) l4d_airport03_garage | COBRA | Normal | 8.79 minutes |
| (Co-op) l4d_airport04_terminal | COBRA | Normal | 4.79 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_farm01_hilltop | COBRA | Expert | 3.92 minutes |
| (Co-op) l4d_farm02_traintunnel | COBRA | Expert | 9.70 minutes |
| (Co-op) l4d_farm03_bridge | COBRA | Expert | 5.66 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | COBRA | Normal | 2.77 minutes |
| (Co-op) l4d_airport02_offices | COBRA | Normal | 7.36 minutes |
| (Co-op) l4d_airport03_garage | COBRA | Normal | 8.79 minutes |
| (Co-op) l4d_airport04_terminal | COBRA | Normal | 4.79 minutes |
| (Co-op) l4d_farm01_hilltop | COBRA | Expert | 3.92 minutes |
| (Co-op) l4d_farm02_traintunnel | COBRA | Expert | 9.70 minutes |
| (Co-op) l4d_farm03_bridge | COBRA | Expert | 5.66 minutes |