Dunno man.. The vanilla is so limited, if one or two players play the big countries, it instantly becomes pointless to be a smaller one. In the modern day mod, there are way more countries that are capable of offensive warfare but not instantly drag the world into a massive war. When we used to play multiplayer sessions with UNMC people, we usually played this mod but with a savegame that had USA's and Russia's alliances disbanded to make it more interesting for smaller countries.