Also available on Steam Workshop.
Mod Download:
It's a Small World After All
Mod Details:
This simple mod does two things. It makes it so that small AI factions can only field 2 armies and takes away the hidden income bonus for minor AI factions.
Any AI faction with 2 regions or less will only be able to field 2 armies (rather than 4). This prevents small factions from overwhelming the larger AI empires.
Presented by Blitzkrieg80 and myself.