Yes there are alot of camping spots, but i've tried to make them covered but not too stealthy, so that no camper can stay there forever because they can be shooted from many directions.
Moreover the most evident camping spots are generally reachable using more than only 1 path, so one can be surprised in the back... at last the best camping spots are probably at ground level, but there you don't have a view as good as on high spots.
High spots: great view, but can be shooted from many directions
Ground spots: short view, but more stealthy
NOTE: all the glasses are easily breakable except for elevator glasses & glass roof on the low house: those are breakable only with granades or HK69