"Only seen on TV, can't be bought anywhere else"
Last is, for the most part, completely different
enlarged mid slightly
more routes for mid-divider to mid
more routes for 2nd to mid-divider
moved around pickups
a handful of changes, mostly near mid
changed mid (subtly smaller now, too)
added upstairs area in building between mid and 2nd
added route, attackers have a basement leading from right staircase to last.