I really like Dab's Idea. Have a few characters that other lawful players must respond to as being lawful, but they are acctually nomads in Disguse/infected crew members. Lawful plays would have to watch out for people like this, cause they could be harmlessly flyign around and then they have given your position away to terrortiest and are attacking.
You could asume the nomads would do this if they were in Disguise. They ARE Sentient beings and they could sow confusion as part of the overall plan.