Not that I know of but this isn't a conventional game. Sounds like mafia can make up whatever and see what the mod allows. There's a role called "Ninja" that makes it so mafia won't show up on tracker or watcher reports though. I imagine they would have to choose between that or godfather, not sure mod will allow both. But I have never seen a game like this.
It's encouraging to know that they probably can't block everything we do, anyway.
Well now that I think about it... What's to stop mafia from using strong man ability? Strongman pierces through protective roles. Hmm...
That depends entirely on his willingness to gamble. If he decides that cops, watchers, and trackers will likely target others and not him, he might try it. On the other hand, if he's conservative, he will protect himself rather than ensure a kill. If he does try to kill someone without being a strongman and that someone is protected, would we be told about it, and, if so, how much would we be told?