This Idea came up through talking to people here about avoiding infantry blobs. Spamming infantry is often the best way to play, but that can be boring. So to encourage more diversity in strategy, we came up with the following:
When taking Casualties, if you select the same unit type as a casualty 3 times in a row, you must take an extra casualty. So if you were defending with ONLY infantry and took 3 casualties, you must remove 4 infantry instead. [you may apply the same rule to all units or just infantry]
Players can adjust this to their liking. Every 4th unit must be different or even every 2nd unit must be different. I would love to play test this more online but not sure how to do that unless people use tabletop simulator.