Ok, I got it working.... very oddly. For some reason the only way I could get both Zylvina and Sii'thari was firstly dismiss all my followers, besides Zylvina. I went to the huntsman (when she was actually there), dismissed Zylvina right infront of Sii'thari, and quickly get both Sii'thari and Zylvina before she left the huntsman. Pretty sure something glitched because now I cant dismiss any followers (yours and base followers) since downloading Sii'thari, but at least I got both now so :P

Couldn 't believe, but i tryed anyway, it works, just download the MFVM-mod and follow it 's instructions!

Did you follow the readme-instructions of the MFVM-mod, which is needed for this mod to work?

Uhm , I found a bug. Half the time, she is not in the drunken huntsmen and I dont think exists (tried teleporting her to me and the game said that the npc does not exist)

I have the UFO (Ultimate Followers overhaul) mod installed and when the other half the time she is in the huntsman, all I get is teh "You Know" option (from the UFO mod) and then the "Nevermid" option, not letting me getting her as a follower.

The UFO mod works perfectly with your Zylvina mod, so I got zero clue on how to get Sii'thari :C

Any ideas?