The thing is
if when there is a civilization ending Event like an EMP attack or such there really will be zombie attacks but they will come in the form of the walking hungry instead of the walking dead. That would be kinda worse, in my opinion, because the enemy would be largely still in possession of their mental faculties and you would be forced to shoot real people rather than the undead.
Reading the comments about why WY was #2 introduced me to something I hadn't heard of before...parkour. Looks fabulously dangerous and fun, if only I was thirty years younger...
It does look like training for urban criminals, though.