i have just had an idea, just now, i dont know if it will work, but i will try it.
In the editor, you can change what AIs often/never build in the 'civilizations' section...
...i will set all of them to build naval units 'often'. lets see if that makes any difference...
It does, but it's causes them to build them idiotically. (like frigates in the modern age etc.) and the English will constantly produce Man-O-War, well after AGEIS Crusiers are discovered lol.
As a heavy seafaring player, and i mean HEAVY, like I fail with all other civ types now(as high levels of course), as most of my strategies center around sea power, I ususally build navies equal to that of my ground forces. While that may seem overkill or unnessary, I can sometimes get away with overproducing destroyers, bombarding a city with about 40 of them and taking it with one infantry ^^. My navies usually are put in different catergoies as I build them:
1. Defense-Always stationed around my islands/territroy to prevent landing on the landmass, period.
2. Offense-Bombardment, usually destroyers and then AGEIS Cruisers
3. Transportaiton-usually battleships with destroyer 1 block ahead
4. Air Force-composed to protect Carriers
Defense, depending on stage in the game, and type of map, ususally ranges form 80-150 cruisers, offense is a constant force of 40 destoyers, transportation is composed of 5 battleships per 3 transports and 1 destoyer one square ahead, air force is 5 carriers, 3 battleships, 2 destoyers, and 1 sub per deployment.