Suggestions to make the game experience more fun:

1) balance the power of the states in the basic world map and add a few more modern units to the base units.
2) increase the maximum number of participants in the matches, if it were a team match automatically suggesting, based on the number of teams, the number of possible players.
3) create wars between coalitions leading to more than two coalitions that can play, then wars with 4 (maybe even more) coalitions in the same game.
4) to evaluate the possibility of adding new ways of winning: in addition to conquering the capital, eliminating all enemies, etc., inserting a victory mode similar to Risk, then conquering certain states or different continents for each individual player, naturally without contemplating the possibility of alliances for this mode.