I still notice in my playthroughs that Sturgis troops are under armored. They're supposed to be the heavy infantry of the game. However they're early infantry is actually weaker than many other nations. I'm okay with them having crap archers and negligible cavalry. however they should have the best infantry lines in the game and they don'tAs far I have seen, Khuzaits dominate the east side 100% of the time, while Battania dominate the west side 60-70% of the time (Vlandia sometime crush Battania).
Sturgia is probably now on Aserai level, not OP but strong.