Everything was perfect, your job your life... Until a zombie apocalypse attacked everyone, at this moment you were wandering down a single avenue, protecting yourself from zombies until it's a moment you lost control and found yourself cornered by a zombie, until a shot pierced the zombie, did you turn to see where that shot came from, saw someone in a building with a frank shooter, muttering something you managed to perceive as a "8000" 8000 what?