I think the army should be formed on the basis of the rules adopted for the game. Since I myself do not have the opportunity to play, then those who are well acquainted with gaming technology need to adapt the rules and create scenarios. I am ready to provide historical facts known to me for this work. Share your ideas, gentlemen!)))
The Chukchi were not part of the forces opposing Yermak. There were something similar to them warriors: the Khanty, Mansi and Selkup. But these are Finno-Ugric peoples. Related Hungarians, Finns, Estonians.