First of all, the mongols are in the game, at least as some kind of free expansion pack. Next, I certainly doubt Hungarians invented horse archers. I'm pretty sure, that at least Huns were also fighting this ways and I think it was a pretty usual way of fighting in asia. Sure, you could argument that Hungarians descent from Huns now. Still, a) this is unproven as is the finn-ugric theory (as it's called a theory, right?), b) does 'descent from' not mean 'are' (dogs descent from wolves, but they are no wolves, right?), c) even if you could proof that Huns and Hungarians are the same (which you can't as we obviously don't have save knowledge about the Huns language for example), there is still the question whether Huns were the first who had horse archers. Feel free to elaborate on this if you like. Of course, horse archer would be an idea for a unique unit, but I'd say it should be used only if we decide for two uu's instead of 1 uu and 1 ub, which I think we shouldn't.
The black army suggestion was also discussed on the hungarian forum. It's pretty much the same as with the horse archer: good for a 2nd idea, but in my opinion not good as a first or single uu for the reasons you have mentioned yourself.
Regarding your doubts connected with the huszár, I think they are unjustified. Actually, what you said, is contrary to my readings. In fact, it seems Huszárs were developed in Corvinus age in Hungary (according to some sources under more or less balcan influence). Even the word 'huszár' seems to be of hungarian origin, see hungarian wikipedia:
http://hu.wikipedia.org/wiki/Husz%C3%A1r. Sure, wikipedia tends to write a lot of BS, but it fits to what I have read elsewhere. In Corvinus age, huszárs were not what usually comes to mind when huszárs are mentioned. I mean, not even the hungarian huszárs were. If you'd like to see what an hungarian huszár at that time looked like, download my civ4 BtS Hungary mod and check the cuirassiers art. So, from Hungary it seems it was exported to 'Poland' were it took a different evolution, different from the hungarian huszárs. Later, the now well known hungarian hussars were exported again to quite a lot of european armies. And it is exactly that later version that is meant here which is unquestionably hungarian and which was a pretty successful model. And after all, they are kind of hungarian jedi (on horses of course, which makes them much more sexy than jedi

), aren't they? Actually, when discussing about this mod on the hungarian forum, this suggestion was almost unquestioned, at least as long as it was about a single or the first uu. I'm not here to dictate anything, but I think using the huszár as uu meets most users wishes.
Regarding the ub, yeah, it's good and at the moment I favor it, too. Still, we have a couple of other good suggestions, too. In general, the ub should be seen in context with the civs trait. They should be in balance. There are two suggestions / combinations I like:
1. ub - végvár, trait - something relating to our cuisine or paprika (I have searched a couple of names I'll release soon) that might influence food and / or hapiness with access to spices and / or wine
2. ub - csárda, trait - something military; nitram made some good suggestions regarding such a trait like Pro Libertate that gives bonus to units within the own borders
There are more suggestions that I may post later. Your trait sounds good, but I'd say that although I honour hungarian science, I think it would still be overrated a bit. But of course, your suggestion will be considered. You can post it on the hungarian forum if you like, if not, I think I'll do.
I'm actually thinking about a vote on the hungarian forum to find out what the majority wants to have as ub and trait. Maybe with two votes per voter if that's possible. The problem with this is, that after all this is kabcsis mod and he is simply not responding. Also, I have a little bit few time now. A vote would take a month at least to have enough participants, then, the hot phase of my diploma begins. Last but not least, we should introduce a new style of translating mods before we publish the next version of this mod to make sure it's compatible. This should be done as soon as possible as with time, more and more mods will be translated and this might lead to chaos if there are mods translated differently. However, that style is ready, but nitram did not yet finish his hungarian guide. And I'd like to have this first before I uploading anything.
Translating / changing the spelling of the uu's and ub's name is another thing I don't like, but I won't insist on. In my opinion, no one will be overstrained by a couple of hungarian words and it almost cetainly won't drop download rates, at least as long as they know (roughly) how to pronounce it. The pronounciation of 'huszár' will be pretty clear as it is pretty close to the word hus(s)ar that is well-known in a couple of languages. In case of 'végvár', people will replace the 'é' and the 'á' with e and a and pronounce it acordingly. The result will close enough to the original pronounciation and will not be hard to pronounce. It'd be different if the word in question would contain a 'gy' or 'ny' for instance as this sound has no counterpart in western languages. Again, I don't insist on this, but let me say that I had it this ways for years for the civ4 mod and noone EVER complained. And even now, there are only Hungarians complaining about it... Even more, the hungarian names will make it a little bit more unique. Finally, I'm somewhat fed up with that anyone spells french words and names correctly, but noone cares for spelling if it's about hungarian or other languages from eastern europe. After all, it remains a spelling mistake, right? I mean, no prob if anyone uses the translated or 'misspelled' version here on the forum or on private use, but in official sources like media the should care more. Well, even if anyone doesn't like the spelling or word we use, he is free to edit the mod. So, I really don't see any reason for this panic...
Anyways, if you have more ideas, feel free to share them here and on the hungarian forum. I think we should all know about them.
(reál tárgyakból sajna ezt nem tudom angolul)
Sounds like you meant 'practical things' like natural science
