Hey there,
as I understand it, Veneti, Rasenna and the Samnite faction already have unique generals here, and Rasenna even uses them in the Grand Campaign. Is there a reason they're not all used in the GC , and even in the Hannibal Campaign? If they still fit historically, I think it would be great to have them there. If they use completely differenc equipment, like classical greeks compared to greeks of and after Alexander's time, that's another thing of course.