The Holy Roman Empire does not exist in 1815 it was dissolved in 1806 by Napoleon in its place is the German confederation but still leave the small German States and there is no feature in the game that has German confederation. For Spain I put regular Spain just to mirror the flag changes in History the spanish X flag or the Burgundian flag stopped being used in 1785 so Leave Spain. Include Native tribes in the mid West United States as well as Northren New Spain and Canada also the Cherooke in North and South Carolina. Native tribes include Sioux, Navajo, Pueblo, Pawnee, Inuit, Blackfoot, Sailish and Much More though I only included one's that exist in the game and in the the scenario just keep clicking the provinces in the mid West US to eventually put Natives just try each modern Is state to find each native tribe. For South America Patagonia and the Amazon are wastelands also in Southern Chile put the Mapuche. For Polynesia all I got is Kingdom of Hawaii, Rapa Nui, and Spanish Claims just a bit West of the Philippines. I will provide screenshots of the missing places you mentioned. To mention this is a rather long paragraph I typed.