It either has to be big, or it has to be seperated into sections that aren't congruent. There are too many key landmarks thanks to lore, previous games, and literature. I get that people want to be able to enter every home, building, and crypt in the city, I really do, but that in itself is unrealistic. You can't do this in real life without getting arrested or risking your life, The same should hold true in game. This whole I can just wander into and loot every home I come across as I interrogate the owner who stands their calmly answering my questions as if nothing is wrong is just stupid. Doors should be locked, home owners should be aggressive, and danger should be associated with every uninvited entry a party makes.
