When I mentioned the Polish factions, I was also referring to Skull of Shadows. Just compare the Sanctuary lineup there and in the one used for NTR, or Stronghold. The difference is huge. I don't see any reason to seriously consider factions from this mod.
Regarding the post with other mods, maybe you mean this: /topic/11301/.
Here again, the mods have the problems described above. There’s a much less polished Stronghold (I think it’s an early prototype for the Stronghold from RTF). A pre-RTF Conflux, and many other things. Really high-quality content in this post concerns Sanctuary. In fact, I provided a link to them in the header. Everything else is just so-so. I don't see any factions here that would make me want to stay up all night and grind units :/
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In general, I have a suggestion to create one balanced replacement so that it would be possible not only to change one race but all of them, but it would be better to use the Polish Skull of Shadows for this purpose; it has many problems, but at least it has been brought to completion
И пусть Эльрат осветит твой путь