I feel best strat for traitors is cause as much confusion day1, sacrifice themselves by CC'ing any powerroles, or acting scummy in general in order to shield the stalker. You can probably get away with that for a few days because you'll be thought of as obvious fool as well.
Stalker also would pick up on this ideally, and know you're not pro-town.
Tracker, if you track the Stalker. Say it in day time chat, it doesn't matter that you get lynched so long as the Masons don't mason the Stalker this setup is practically town auto-win.
to win for mafia, you pretty much have to have the masons mis-mason. It's not really possible otherwise. I've shot the tracker, lead a lynch on the vig, shot a mason, and they still had the numbers to for the NL. Even though they had masoned the fool. IMO, switch stalker for witch, or maybe fool for nilla or something. Witch would punish tracker/vig/masoning, or a nilla would at least stem mason influence, as well as avoid that *d1 lose hearts* bug.
If you're fool in this setup its pretty much autolose for you unless you get masoned. With the recent changes to halving points for joint wins no one wants to joint with fool anymore...fucking terrible