No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  Carbide | Normal | 4.70 minutes |
| (Co-op) l4d_hospital02_subway | Carbide | Normal | 7.75 minutes |
| (Co-op) l4d_hospital03_sewers | Carbide | Normal | 6.91 minutes |
| (Co-op) l4d_hospital04_interior | Carbide | Normal | 7.20 minutes |
| (Co-op) l4d_hospital05_rooftop | Carbide | Normal | 6.65 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | Carbide | Normal | 2.46 minutes |
| (Co-op) l4d_airport02_offices | Carbide | Normal | 8.41 minutes |
| (Co-op) l4d_airport03_garage | Carbide | Normal | 10.13 minutes |
| (Co-op) l4d_airport04_terminal | Carbide | Normal | 7.19 minutes |
| (Co-op) l4d_airport05_runway | Carbide | Normal | 5.64 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | Carbide | Normal | 3.52 minutes |
| (Co-op) l4d_smalltown02_drainage | Carbide | Normal | 5.19 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Carbide | Normal | 7.88 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Carbide | Normal | 8.09 minutes |
| (Co-op) l4d_smalltown05_houseboat | Carbide | Normal | 9.33 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | Carbide | Normal | 3.40 minutes |
