I'll going to talk about this mod in overall, broading terms, and just put out as much information as I can.
First off, I would like to say that this mod is very enjoyable, the thought of being able to conquer the whole world is extremly exciting, and you have done a very, very good job at realizing such. Each faction feels right, and I enjoy my current campaigns. You are clearly a gifted Body sculptor, the asian factions are beautiful.
I have noticed that in battles terran is overly large. I do enjoy the curves, but perhaps to much. Sometimes it's so high up that you can't move, the enemy spawns at a place you can't reach. Map does look nice though. Perhaps cutting heights in half would help this problem.
Now, your recuitment method is a double edged sword. I really do like being able to recuit local troops, it has a Europa Barbaroum feel to it, and I deeply enjoy that. However, I do not like being unable to recuit my own factions troops elsewhere, it's really kind of weird. I think a way to fix this was to merge the two. You can recuit local troops, but not the best of them, but abroad you can recuit some of your local and medium troops, but not your best. Even better would be a distance gap. China for intances, should be able to build there heavy troops in japan, and most of asia, medium in india, russia, and the middle east, while in europe they can only build light troops and such. It's just kind of distressing you can't recuit the same troops anywhere. I do understand the culture thing, but still, a little saddening.
Another problem is that I hate seeing poland and scotland dying so quietly. I think every faction should have at least 4 family members, or even better, historial faction trees. I think having four family members for every faction would avert some factions suddenly dying. And I kind of wish Venice had a family tree.
Also, the village idea is not something I quite agree with. I perfer Mining, Double or triple the worth of mines.
Now, as for overall economy, I think trade is way, way to high. As china I beleive if I remember correctyly, I could spawn 20 full stacks of men, maybe 30, currently making 50 K a year. I think cutting trade in half (But around double of normal) Would be ok. Then again, china did get alot of trade...
Overall, this mod is amazing, I enjoy playing it, and am loving it. With a bit of ironing out, it could win awards!
P.S Japanese have no cannons... for some reason. I might edit the file myself.