Mafia

Yes sir, that's exactly what it is.

Technically the only roles were the equivalent of the Thug, the Silencer and the Janitor, none of which were killing roles. Since the Sith have the Dark Lord AND the Droid Spy, they can use those two in conjunction. When the Droid Spy discovers someone's role, the Dark Lord can "guess" their role with 100% accuracy and turn them to the Dark Side and give them any Sith role that the Dark Lord wishes. Also, you win WITH the Sith, so you may want to keep in mind about the Dark Lord/Droid Spy combo.

If you copy one of them, you could spy on two people at once, or convert two people at once, however you like. Overall, that combo is a great way to turn the tables in favor of the Sith. Of course, copying a republic role would be equally useful.

Yeah, the Dark Lord is easily the most important Sith role when it comes to their success.

If you opt to become an Obi-Wan copy, technically you will become part of the Jedi instead...

Looks like it's your only way out now. {:?}

As do I.

You'll be an Obi-Wan clone come Day 2.