Awesome game
is one of the betters sagas of zombie games that i play but i prefer the S.A.S.Zombie Assault 2 because its have a very big space,to enter to another part you have to pay and other stuff ,if you going to do a sas zombie assault 4 made it the maps like the sas zombie assault 2
PS:if you read this or someone readit and did understand nothing if because i do not now too much english