I was trying to do an all-ages Armenia, though it's difficult, I used a list of modern day cities (Yerevan is sort of both) although I also put in Tigranocerta which is no longer in existence. I intend to add a modern Armenia leader but I've been swamped. If you could send me a list of some of the older Armenian cities I'd gladly add them. I also take your point about the 5th Century defining Armenia. I suppose I could emphasize it more through the UU.
I would be glad to see make your own Armenian civ if you want and feel free to use mine as a base if it's helpful. Any other help I could offer I'd be glad to give it.
I noticed your name in another thread and thought you'd come up with some criticisms, I appreciate them though. I also considered doing a Uratu civ which is sort of ancient Armenia.