If the world is ravaged by a virus that wiped out pretty much the entirity of the human population, why the fuck anyone would would go anywhere without some form of protection? It's not some experiment or some local infection, the FRONT PAGE of the Day Z website states that it is global. How about we go to the logical conclusion to the shipwreck theory. You won't be wearing a backpack and you start with no bandages, coyote pack, or flashlight and you start off with nearly red food and dehydration, that will pretty much sum up the average person washed ashore. Last time I checked, Day Z was suppose to be a videogame, not Masochist Self Gratifying Time Waster.