One optional rule I have been thinking of trying is giving militia units only 2 dice when they fire instead of 3. I can't imagine they had the fire training and discipline that regular troops had, yet they are just as likely as veterans to inflict hits.
My thoughts: Militia already suck. In a game like this where unit elimination equals a VP, a unit that starts with half the MP’s is at a significant disadvantage. Making them suck worse by reducing their dice would not make them worth fielding.