And I guess combative physical sports were pretty common too. *shrug* Hey, I didn't make the rules. I just cross-check the numbers add up like they should.
So as in the Classical Mediterranean. Of course, if we consider that Celtic lands were becoming gradually more urbanised in the EB timeframe, the larger urban populations presumably levied for war would probably live on some sort of trade or agriculture as opposed to the "in the woods" figure, whatever that means, and not much different from a Greco-Roman levy in "strenght" or whatever differential a rugged life could make.

But still I agree that given the limitations of the engine and such the figures are in general good for balance, however I disagree that such differentials between the skill of Lugoae and the line Greek Hoplites, for example, should exist for anything more than that, and just that.