Quote Originally Posted by gran_guitarra
THe Marian Reforms, though, are really more of a joke than anything else. Cohors Reformata and Polybian Principes are pretty much identical, except Principes look cooler.
Basically they had been Principes by equipement. The hughe difference from Polybian to Marian times is that you now get your Legions all over the world, even in places where no one else is able to recruit anything. That makes campaigning outside Italy much more easyer.