Could anyone here point me to a thread or site that explains how the battle system works in RTW? I'm interested to know how the computer uses the Defensive skill, armor, and shield compared to attack.

I've found things here about the defensive skill being used on the front and right, shield on front and left, and armor on all facings. But, comparing such high defensive skills to relatively low attack values for most units, I don't know how some units hit an enemy at all.

Any help would be appreciated!