So you are going through a desertad wasteland with bodies and moans but you never see a zombie. There would be scripted elements in which people in the group would stray away and later you would find them dead in the street. You would never see a zombie and there would be no combat but at every turn you would expect one but dont find it. You try to get to safe houses and an aid station at the end. You here distant moans and find mangled bodies. You have to keep hydrated and fed as well as have regular sleep or you could pass out and die. What do you think?