Man, that thing is pretty nicely done... If a zombie apocalypse does exist (hell, I doubt such a virus would exist, but the same could be said for lots of things we have nowadays), it will eventually start with small things and steadly will increase into larger scales, people will eventually be unable to continue their daily lives, services like water, electricity and phones will prolly cease funtion, some countries will prolly attempt to invent a vaccine to it, some rich people will most likely have a high security location made for them (like a secluded place from all sides with no doors to the outside, and managing a living with self produced resources, farming, wells, etc...), some others will try running away and looking for a safe place, lots of people, the weaker ones, will simply just kill themselves, causing absurd ammounts of suicides, others will kill their friends and families out of fear from being infected, etc... The world would prolly come to an end and the most safest solution would be vauls, like on Fallout. =3