Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport02_offices |  SerpentBreath | Normal | 9.58 minutes |
| (Co-op) l4d_airport03_garage | SerpentBreath | Normal | 8.83 minutes |
| (Co-op) l4d_airport04_terminal | SerpentBreath | Normal | 5.98 minutes |
| (Co-op) l4d_airport05_runway | SerpentBreath | Normal | 5.94 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | SerpentBreath | Normal | 6.82 minutes |
| (Co-op) l4d_smalltown02_drainage | SerpentBreath | Normal | 6.21 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | SerpentBreath | Normal | 9.43 minutes |
| (Co-op) l4d_smalltown04_mainstreet | SerpentBreath | Normal | 10.10 minutes |
| (Co-op) l4d_smalltown05_houseboat | SerpentBreath | Normal | 9.92 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | SerpentBreath | Normal | 4.77 minutes |
| (Co-op) l4d_farm02_traintunnel | SerpentBreath | Normal | 6.65 minutes |
| (Co-op) l4d_farm03_bridge | SerpentBreath | Normal | 6.46 minutes |
| (Co-op) l4d_farm04_barn | SerpentBreath | Normal | 5.10 minutes |
| (Co-op) l4d_farm05_cornfield | SerpentBreath | Normal | 9.69 minutes |
Crash Course
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_garage02_lots | SerpentBreath | Normal | 12.79 minutes |
