No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital01_apartment |  squirkle | Advanced | 2.94 minutes |
| (Co-op) l4d_hospital01_apartment | squirkle | Normal | 2.09 minutes |
| (Co-op) l4d_hospital02_subway | squirkle | Expert | 8.07 minutes |
| (Co-op) l4d_hospital02_subway | squirkle | Advanced | 5.72 minutes |
| (Co-op) l4d_hospital02_subway | squirkle | Normal | 6.92 minutes |
| (Co-op) l4d_hospital03_sewers | squirkle | Expert | 15.00 minutes |
| (Co-op) l4d_hospital03_sewers | squirkle | Advanced | 5.69 minutes |
| (Co-op) l4d_hospital03_sewers | squirkle | Normal | 5.93 minutes |
| (Co-op) l4d_hospital04_interior | squirkle | Advanced | 5.28 minutes |
| (Co-op) l4d_hospital04_interior | squirkle | Normal | 4.92 minutes |
| (Co-op) l4d_hospital05_rooftop | squirkle | Advanced | 8.09 minutes |
| (Co-op) l4d_hospital05_rooftop | squirkle | Normal | 7.45 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | squirkle | Normal | 4.32 minutes |
| (Co-op) l4d_airport02_offices | squirkle | Expert | 14.56 minutes |
| (Co-op) l4d_airport02_offices | squirkle | Normal | 6.00 minutes |
| (Co-op) l4d_airport03_garage | squirkle | Normal | 6.91 minutes |
| (Co-op) l4d_airport04_terminal | squirkle | Normal | 3.83 minutes |
| (Co-op) l4d_airport05_runway | squirkle | Normal | 6.26 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | squirkle | Normal | 3.70 minutes |
| (Co-op) l4d_smalltown02_drainage | squirkle | Normal | 4.06 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | squirkle | Expert | 12.80 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | squirkle | Normal | 2.88 minutes |
| (Co-op) l4d_smalltown04_mainstreet | squirkle | Expert | 7.44 minutes |
| (Co-op) l4d_smalltown04_mainstreet | squirkle | Normal | 6.42 minutes |
| (Co-op) l4d_smalltown05_houseboat | squirkle | Expert | 9.80 minutes |
| (Co-op) l4d_smalltown05_houseboat | squirkle | Advanced | 11.95 minutes |
| (Co-op) l4d_smalltown05_houseboat | squirkle | Normal | 8.03 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | squirkle | Advanced | 4.03 minutes |
| (Co-op) l4d_farm01_hilltop | squirkle | Normal | 2.18 minutes |
| (Co-op) l4d_farm02_traintunnel | squirkle | Advanced | 6.23 minutes |
| (Co-op) l4d_farm02_traintunnel | squirkle | Normal | 3.56 minutes |
| (Co-op) l4d_farm03_bridge | squirkle | Advanced | 6.80 minutes |
| (Co-op) l4d_farm03_bridge | squirkle | Normal | 4.39 minutes |
| (Co-op) l4d_farm04_barn | squirkle | Advanced | 5.55 minutes |
| (Co-op) l4d_farm04_barn | squirkle | Normal | 2.52 minutes |
| (Co-op) l4d_farm05_cornfield | squirkle | Normal | 8.56 minutes |
