Will there be Epirus faction?
No, but there is already an Epirus provincial campaign if you want to try it out. Take a look here.
i followed the directions for installing that epirus campaign and still cant seem to get it to work
ok then so i should use the epirus one then?
Randal: Try the latest version from CaesarVincens posted here, and use the 'Epirus' version, or just download the new version of XGM. The Epirus campaign is included.