The Imperial City is a difficult DLC in and of itself. It's crawling with a boss-level daedra and other enemy NPC's. But add in that enemy players can attack you while completing quests is both annoying and extremely inconveniant. Zenimax, please consider adding a mechanic or gameplay option to turn off PVP while completing the DLC quests in this area. Even if it's selectively limited to having the quest marker on to have the option would be great!