Wondering what all these values (atk, def, armor, etc) mean.

I have a faint recollection of the combat resolution system in mtw: it was some type of exponential function based on dif betw atk and def.

Also, what exactly does experience do? +1 atk/def and some bonus to morale?

And command? General command rating does not seem to show up in unit stats, unlike in MTW. Does the general have to be near units for the command bonuses (whatever they are) to come into effect?

Thanks a bunch. Appreciate nay answers.