Hi!

I've been trying to find for a pretty long time some good free resources on medieval armies for the byzantine empire, especially to contain the centuries 11-14, but I can't find something useful and comprehensive (i.e. to tell what units it used, how they were equipped, how much each costed and how useful/strong were and how many they were, maybe even which were the strongest cities/regions, battles, tactics).
I found something that seemed interesting, namely a book called "The Grand Strategy of the Byzantine Empire" but I didn't find it free anywhere.

If anyone of you has worked for a mod, can you please tell me where or how I can find such things?

I hope this is the right place to ask this question...