I understand that guerrillas go undetected by defensive buildings but what I cant understand is why they go completely ignored by foot troops and cavary units. I've been attacked twice in the last week by players who used guerrillas and they basically walked through dozens of defensive troops unchecked. Could it be that because they dont go after troops, the troops prioritize and go after units that pose a direct threat to them? I've noticed this behavior when I attack with cannons. Calvary units would be attacking my cannons and all of a sudden leave and attack the gunpowder unit who is attacking them. In that situation I can understand their behavior, but why ignore a unit that walks completely thru a whole army that takes out 5 defensive buildings before accidentally stepping on a spike trap?