Zombie Apocalypse

A few months ago, a zombie apocalypse had started throughout the world. At first, things seemed fine, before more and more people got infected

Now, the population of ever country is cut down by half, and you're one of the lucky few still alive in California

You're running away from zombies on an injured ankle, finding a shed to hide in. You can only rest for a second, before another human walks in, holding a gun "Who's there?!" He asks, thinking it was a zombie