[@Willy Vereb] Listing things off:

Might want to recheck some terms like Nihongo. (Unrelated, but I'm curious as to what is Druger is. I keep thinking of Drauger from Skyrim).

Not quite sure on how I feel about Karikabuum "rivaling the gun powder of the Dwarves". You're free to have it of course but I'd prefer it you change it so that it doesn't rival something that the dwarves have been perfecting for a hella long time.

There are no "winds of magic", might want to remove mention of that in the magic.

As for the military, I'd say focus on either cav or artillery and not both, not quite sure how having a diverse variety of races as levies/mercs is an advantage though, if anything it might be a disadvantage as racial divides and stuff would flare up. Even if non-violent, it sew distrust and the likes. Might want to reword your disadvantages: 

"Light equipment for the raiders while the rest of the army can't keep up" - Doesn't quite make sense to me, is some of your troops more lightly armed? Why aren't they just staying with the main army like most light troops.

"Needs non-Uruk levies and mercenaries to make up for most of its unit types." - Does this mean that the Uruk army by itself is small (of only Uruks) thus requiring other races to bolster the ranks? Why not just use professional soldiers of those races instead of levies and mercs that can be bought off.

"Availability of non-Uruk units depends on location and nature of the campaign " - Not as confused as I am a bit worried for a massive fucking roster list.

I guess my point is, why not just have a smaller, elite army instead of this massive collection of races with weapons.