[BesucherXia]

Just like they have improved the attributes of ulmish black plates, some small tweaks can also help a nation a lot. There are many unique stuffs in the Japanese armory. I guess the alike tricks work for them as well.

I am also more for a parallel race. Assigning those amphibian units different equipments and they can form the bulk of a brand new force to give LA Rlyeh another competitor. Or maybe let us enlist them via special sites? At least in Chinese tales those shrimps and crabs minions are not very competitive warriors, that's part of the reason why I doubt they will truly help improving Jomon. Making them national units seems to be more reasonable for me.