I looked several pages back and so nothing about how to play as ambusher and whenever I play, what seems to happen is the ambusher chooses the jailor, kills a random visitor and then gets hanged the next door unless the town is completely garbage then they live all game. That actually happened in one of my games. So far, I just avoid high traffic targets like jailor or mayor and try to target someone I think will only have one person visiting them and it worked but then, the town that game was pretty bad.
Thoughts?