I've been getting into this excellent mod, and I think Arachnoids are very cool.
This mod allows for a lot of very cool Gift of Reason situations.
I do have a question, not neccessarily only related to the mod but brought up in my mind because of it: shouldn't mindless units lose their mindless status upon recieving Gift of Reason? Those cool black things that I gift a bunch nd deck out with cool weapons are "mindless", yet are also commanders and have been given reason by the spell.