With my changes for the campaign AIs, the story will feel more as it is supposed to, in my opinion ;) This is no real mod for FA, you only need to replace files of your FA installation. Easy installation and lots of fun changes ^^
Patch, hoping to solve some of your issues. And if not, then I have no idea why you can't play...
I have no idea if it'll actually work, but I can only tell you that I never had issues of not being able to play missions as the UEF or Cybrans. So, with this, I hope you can! :)
There are some changes, but not really much. Rhiza has been made weaker in the last mission, Dostya does no longer build Monkeylord defenses so now her base should be destroyed after the attack. That is pretty much all, not much has happened yet xD