As for the idea of delaying heavy cavalry until Communism or Fascism, keep in mind that infantry and artillery are only three techs deep in the industrial era if players pursue a beeline. So by the time players would research two industrial techs in order to get heavy cavalry, they would be almost to a point where they could start using infantry/artillery tactics, an approach that is slower but that remains overwhelmingly powerful a whole lot longer. If we want cavalry rushes to be an interesting alternative to infantry/artillery warfare, I thiink delaying the more powerful cavalry beyond Nationalism would seriously undermine that goal.
but maybe then our new infantry are too powerful in the attack?!?
the human is the only player who will beeline to RP. with artillery he can soften up any defence and infantry are used to get rid of the redlined oponents.
i know we increased infantry to 8 because the AI has it flagged as "offensive unit", but isn't it now just the "slow" gamebreaking unit for the human (when combined with artillery)? i know this is the strategy i'd be using in games where i have a slight tech lead and the AI has riflemen.
do you see this as a problem or not so much?