Yes in the rules, for PC's who want to know
"All abilities are limited to light armor or less, due to the need to move freely."
So dont go making a build like Aaron's
What Aaron failed to mention was the buffs the king gave out which were in no way in the rule book. Being that We Gm's came up with the buffs and we make the rules then we were not cheating.

That is why people were able to throw for 66 damage (no magic call attached) and other wierd things that didnt seem to make sense.
We had healers so the elite troops had healing circles going just like the PC's
I understand how some people do believe that NPC's should be heald to the same rules as the PC's, but if we did that then the battle would have taken an hour and not have been as challenging.
Let me know if you have other questions or concerns of a strictly mechanical nature