10 zombies coming out of a house is fun, 15 is interesting, but 30 is just a test of patience - another "fetch this"-game that tries to balance and prolongue its shortcomings with masses of enemies ..
patch (fetch) this: - make the daytime cycle longer
- limit the spawning
- give some more time to plan ahead ( if the game demands constant fetching at least gimme some time in between)
this game reminds me so much of the weak points of gta IV - specially the part when you get called from your "friends" to spend time ..