Quote Originally Posted by Shinklet View Post
It's been done with a single party, don't hope on saving all prisoners though lol.

two parties, just a shred of co-ordination and it's doable. People are just lazy and want others to do the co-ordination for them.
I've been in there my fair share of attempts. Not once have I ever seen it done with less than 25. Any less than that simply aren't capable of killing the first boss(es), let along what comes next. This has been my experience.