Ok, so you can do this in E:TW and N:TW and it's become an important part of the game to me. Yes, I know it's just names, but it creates a personality and history around the units which make the experience much more immersive for me. See here for details if interested: http://forums.totalwar.com/showthrea...t=naming+units
Anyway, it's now been confirmed that this feature of being able to name our own units will no longer be there in the SP Campaign.
I know I'm going to really miss this, so I propose it's reintroduction via a mod. I've no idea how hard this would be to implement with S2, but just thought I suggest here in the hope that others feel the same and have the skills to make it happen.