heres a tip if anyone wants to know...
So i noticed that there are lots of places where u can get stuck cause you dont see em or you think its passable but not. BUT i found it can be used on the zombies. This could be a spoiler for some cause once you know this the game turns out really easy.... Once you get all three gun go into the bathroom and start killing from there. the zombies from the left get suck and you can still shoot them from the other side and the bathroom has a narrow passage so the zombie can only come from straight on.
fun quick zombie game. :b