Dead Air (L4D1)
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | [BO]FRO-ZEEN BBX | Normal | 3.61 minutes |
| (Co-op) l4d_airport02_offices | [BO]FRO-ZEEN BBX | Normal | 11.78 minutes |
| (Co-op) l4d_airport03_garage | [BO]FRO-ZEEN BBX | Normal | 12.28 minutes |
| (Co-op) l4d_airport05_runway | [BO]FRO-ZEEN BBX | Advanced | 8.47 minutes |
Blood Harvest (L4D1)
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | [BO]FRO-ZEEN BBX | Advanced | 5.82 minutes |
| (Co-op) l4d_farm02_traintunnel | [BO]FRO-ZEEN BBX | Advanced | 7.22 minutes |
Custom Maps
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | [BO]FRO-ZEEN BBX | Normal | 3.61 minutes |
| (Co-op) l4d_airport02_offices | [BO]FRO-ZEEN BBX | Normal | 11.78 minutes |
| (Co-op) l4d_airport03_garage | [BO]FRO-ZEEN BBX | Normal | 12.28 minutes |
| (Co-op) l4d_airport05_runway | [BO]FRO-ZEEN BBX | Advanced | 8.47 minutes |
| (Co-op) l4d_farm01_hilltop | [BO]FRO-ZEEN BBX | Advanced | 5.82 minutes |
| (Co-op) l4d_farm02_traintunnel | [BO]FRO-ZEEN BBX | Advanced | 7.22 minutes |