Zombies are stupid, you can just zigzag and outrun them.
I dont really fear them at all. I just run into a town looking for buildings, and if I see an open building I go in a axe them in the head till they are all gone. If there is no building I just run into the woods and zig zag through trees and/or bushes, and they get stuck or disappear. I dont know which, I just know they are gone quickly after doing it.
First two lives went 3 and 6 hours. First death was because I ran into a small barn with zombies on my butt and I picked up a double barrel shotgun, and it made my axe disappear. It didnt drop or go into the tool belt, it just disappeared. So I ran out of ammo quick and it was a slow torturous death. If this is supposed to be "realistic", I should be able to use my flashlight or empty weapon as a melee. Even if it takes a couple head shots, it would be better than nothing. Second death a zombie lunged or lagged at me from like 15 ft away and one shot knocked me out. Took me under 4K blood and I couldnt see. So after 15 mins of blurry vision I just said f it and ran around a field making a last stand.
In both cases, I was looking for food. I had knives and meat, but no god damn matches. I wasnt even finding food in buildings. I was looking for food from the beginning, and would get to the point where the indicator started blinking. I think I could survive forever with just the axe, water bottle, knife and matches. The matches are so damn hard to find though, and this is Europe, so it makes no sense with all the heavy smokers. If you go into a house, there should always be matches. Same with a gas station or store, unless someone took them and you have to wait for the items to respawn.
One thing I like, which makes no sense, is when you head shot a zombie with an axe. It makes a bullet ping sound. I find myself challenging them with the axe all the time. Just run for a sec or two, turn around, and *ping*! lol