Are we sure all 4 back houses exit at MiB? The last of us entrance is on the right side and the exit is on the left. That means for last of us to exit there they have to flip the way they run that house and for monsters to exit there they have to cross the last of us line which both seem unlikely. To me I would guess that the exit next to last of us entrance is for tents and monsters and tlou would exit at Simpson gate?