Ran into some Star Sinister guys a while back. Don't like them at all. They're harder to deal with than independents and Tower Reversed combined.
What - you're surprised by that? Sure, everybody fears the tower, and with good reason. They're the biggest, best armed, and smartest. At the same time, they have a code. You do not disrespect a man of the tower. Just pay the damn toll, and don't insult their intelligence, and you'll make it out all right. Make a fuss, and they will teach you respect. Its like wolf alphas. Or perhaps like reanimates - something might come along to clean it up and be worthy of praise - but until then, be careful.
Lesser groups of low level adventurers - they're usually a bit desperate. They'll either shy away from a real fight, or make make stupid mistakes and get in over their heads. Either way, its a lot easier to trick, fight off, or escape a small band than evade the Tower for an extended period.
Star Sinister has a size closer to the Tower, but all the cockiness and violence of an independent group. They don't act like gentlemen and avenge their honor. No, getting back at someone who evaded their wrath is just a game and the Star plays to win. The tower isn't above threatening innocents to get the law to come out,
but Star Sinister just skips to the burning without the warning.
There is no cure for comic book crazy. That is the big trouble. Sometimes putting the hurt on the Star is enough to drive it off, sometimes it just makes them all the more angry. Individual members will hunt you down even without support because they're just like that. Its a matter of judging people and avoiding the loose cannons. People skills over firepower, regardless of how reprehensible the members singularly and collectively are.
I hate violence, and I'd still prefer a good shoot out to navigating the sick minds of raiders. That is how bad these guys are.