You: "Okay, I will come out."
*You join the survivor's party. Just about time to stock up on ammo and head out. You and your team spend hours searching for others, but have failed to find anyone*
*Fade in, 12:21 PM, January 15th, 2029. The world is still. The infection took it's toll, and what undead that were not mowed down by the survivors sat in one place and rotted into dust. Time to get down to the bottom of this. It seems all of the undead simply vanished into thin air.*