Elite Gamer (Zombie Dawn Stories)

Zack and his friends are elite zombie killers. After years of fighting the undead on their computers they finally get to test their abilities for real. When the zombie apocalypse starts, Zack grabs his trusty survival manuals and attempts to use his gaming knowledge to get out of the city. Will Zack and his friends make it out alive or will they fall in a desperate battle with the undead horde?