On the campaign where i am playing (EU PC spellbreaker) there are tons of EP players who just farm in IC and cities. The campaign is completely controlled by EP and they openly run around and farm. And - nobody kills them. Everyone can change sides and be a traitor IRL so there should be an opportunity to enter cyro and IC as a bandit and be able to attack members of any alliance and also other bandits - everyone for himself. The mechanism should be like with the normal/vet dungeons - you exit, switch to normal/bandit mode and enter, starting areas could be some unused points on the landscape like non-quest dungeons or ayleid ruins.