Can you kill all the dummies in freeplay mode and be the only crewmate left standing?
After a few tries I managed to do it, it's just pure luck to do it though.
For those of us wondering, you can still do tasks and win that way as crewmate, this will respawn all the dummies. (Although, a simpler way would be to just become Impostor again and respawn them.)
It is possible :D i made it after like the 100th try