Skull of Shadows (SoS) is a Polish mod that replaces all the factions.

Why?! There is a utility for balancing – NOIADE... but it takes a lot of time to do this balancing!

psatkha, it is physically impossible to balance a version where the number of creature models exceeds the number of bugs found. The original version still doesn't have a perfect balance, and I'm afraid to imagine someone taking on this hopeless task. IMHO.