Hmm, you've given a lot of thought into this, and included counters...I'm going to have to trust you I can't remember...can all roles attack? I'll reread...
Edit: Yes they can...thats an amazing strategy Y-San! Wow! I'm attacking right?
Yep, as #4 you should attack JS, who should be defending (whether he likes the plan or not ;P)
I don't think he does, though, I expect 5 ppl (the villains) not too...that's the 2nd part of my plan