Something like this?:
Defeatist
Neutral Support
Asleep (Passive) - As you are asleep, and people cannot find you. All visits to you before N3 are prevented.
Defeatist (Passive) - After Night 3 you will be forced to join the losing faction. During Day 4 you may pick any non-unique class, or it’s infected equivalent (depending on who is losing) and you will become that class that night.
Goal: Join the losing faction and win with them.
Does it need any abilities?