So in Shogun2 you can only make diplomatic deals with factions you've contacted with. I'm not sure it's a good idea because it makes diplomacy too dependent upon the starting positions, for example Takeda almost always ally with Hojo immediately since they're neighbors. My thinking is, if every major factions can make deals with each other from the beginning, maybe we'll get to see some more dynamic changes in diplomacy: new daring alliances, more potential naval invasions and so on .

So I was wondering if this is possible to mod in? The mechanic itself might be hardcoded, but I know that if I remove fog of war and make a diplomatic deal with a neighbor in the beginning, the game will somehow reveal almost every faction in my diplomacy panel. Is it possible to do this for the AIs, like via script or something?