I still do not buy the Central nervous system shot as being the stopper. If they are dead a hole in the brain would not do anything. You would need to sever musles and break bones. hey time for your sword.
But I also do not see things comming back to life once dead. Only two people I have heard of this happening to.
1) Lazerous
2) Jesus Christ.
But with all the brain dead lierals set on destroying our way of life I can see how the zombie stories catch on.
I think they and the life sucking vampire stories are great science fiction entertainment.
Still not sure if there is anything inside the cranium to hit in a liberal.
I think a plague, virus, or chemical attack is more likely than zombies. The idea of a handful of survivors in an area due to prior planning, imune system or something else is likely and surviving.
You will need to leave where the attack happened. The dead will carry or bring sickness in the forms of bacteria from the rotting bodies. the history fo the black plague and other outbreaks that had people dying faster than the dead could be burried. Scavangers, vermin, and the lack of food killed many survivors of the inital what ever.
When I was in my Jr. High days and the cold war was at it's apex. I often wondered what i would do if the nukes / neutron bombs flew. I lived just south of NYC inbetween the Earl Navy pier, fort Monmouth, and the weapons depot. The idea that I would survive some how along with the girl of my dreams and be able to leave was things i thought about from time to time. Some how I was never alone. Mostly adults did not make it. Some how the Neutron bombs only killed the adults and the people I did not like in my "what if" senerio.
If these things help you expand ideas for a book, comic or movie then wroite it down, you are a pretty imaginitive kid.