this game need to option to use any google maps section. playing it in your own town would be cool. maybe create a version where you can make your own maps in a zombie survival version (any one played rebuild 2)
make the difference between different level people more clean especially for janitors and scientist, for workers it is well done by changing shirt color.
awesome game, but if your ever adding anything I would like to see the number of zombies in a building if you click it and not have to click kill zombie mission first.