In every map (Union City, Southside, and NYCity) it includes map barriers containing tunnels supposedly leading to other maps. In Union City there is a tunnel to Southside, in Southside there is a tunnel Union Street, Union Freeway, and Sleeping Hollow, and in NYCity there is a tunnel to Southside, Union City, and Union Freeway. Can anybody piece together the layout of where each map is? I'm trying to assemble them together but I'm not really sure how.