I don't mind the changes to armies. The limit on number of stacks is irrelevant since the best tactic in all recent games (Empire onwards) has been to stick everything together and roll over people. I have a maximum of 9 right now, which is more than enough. It would be nice to be able to manually reinforce garrisons with extra troops if you know you're about to be attacked or you need some extra repression, but overall I haven't had any serious problems with public order so far. It takes a lot of shit before anything rebels.
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Amphibious assaults working as intended