This – IS – SPARTA!!! [Spartan combat bonus mod]
A mod that gives country modifiers with combat bonuses to heavy infantry based on the % of Spartan pops in your country. Warning: May not be entirely historially accurate! If you have the 100% Spartan modifier, it’s basically going to be an army of 300-style Spartans.
The "% Spartan modifiers" are applied monthly and on game start.