I admit, I do not plan on updating the map any further, so I will post any known bugs below.
----------

At the fountain, face the empty parking lot with the tall, blank wall on the end. That wall has ~50 copies of itself, in itself. You should definitely delete the extras.

There are tiny slivers of wall across the map where the skybox should be. Example: http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=461216440 These slivers should have no impact on performance.