Not a huge fan of Zombie games, most anyone who has RPG'ed with me is always amazed how ruthless my character becomes in the presence of Undead - not role playing but for some odd reason the whole concept totally creeps me out as a real life person and I reflect that in my game play I guess.
That aside, that is a tremendous story line, gets the attention (and the support) of the reader right away and established both the base personality of the characters and possible changes ahead for the individual characters. I may well follow this story line to see where it goes. Nice work on the write up!
Gracias,
Glenn