A few months ago I found the Kingdoms in Grand Campaign Mod (hereinafter - KGCM). It was a very nive idea to add some "forgotten" countries to the Imperial Campaign. So, thanks to Dave_Scarface (he is mentioned on the loading screen as author) and Voxhales, who uploaded the mod version, that is present on Moddb. I decided to add some things like my favourite Renaissance troops and the Appachean faction to create a rival for the Aztecs in America. I suppose, my enhanced version of KGCM will be appreciated. PS: City names and regions are translated into Russian. You may easily retranslate them back to English by changing the KGCM text files.
This is the full enhanced version of KGCM. Please, reply, if something doesn't work correctly.