Twenty or so unique units per faction is fine but there simply has to be a large number of units that are found in more than one faction. I think it would be wise if CA placed an even greater huge emphasis on region specific units in RTW than it did in MTW. So many armies that took the field in those days sported non-standardized units that they simply recruited from the local region. What about factions like Carthage whose armies were comprised almost entirely of mercenary units? During the Punic wars Celts and Celt-Iberians often found themselves on both sides of the war, often facing their own kind in battle

With that in mind how am I supposed to believe that most of Carthage's units in RTW are 'unique' to Carthage?

Anyway, Faisal touched on this in another thread and people came up with a fair number of region specific units that could be depicted in RTW:

http://www.totalwar.org/cgi-bin....;t=6320