Played this mod for the first time today… I think it is a systemical design flaw, that you can recruit professional military units (yes, even the recruits) right from the start. Until you join a faction they player should only be able to recruit units like guerrilla (people from all classes of society), militia (peasantry or middle class) or units like german Freikorp (can be compared with a more professional militia, later with experience like a normal army unit, but much higher morale in case of voluntary units). Even criminal or more "barbaric" units (russia?) are imaginable.

To be honest, all you need to put this into game is already there...ok the range of improvised weapons could be wider. But civilian clothing plus paramilitaric/improvised weapons...and you have a new section of units, that fit better to the game start.