I guess those in control of the food/ power/ water will have the luxury of digging in and waiting the other side out... Unless the losing team gets nasty, (an insightful person might start laying in some supplies against the coming storm... ) and goes for the pumps.. (if I cant win... nobody can... )
I would gladly invest in 667 the Movie, but I am in the throws of purchasing my first property... A Church, Hasn't got a bomb shelter .... yet (does have a very sturdy out house however, with a 5 inch concrete slab for a roof.... I may not have much room, come the apocolypse, but I can at least be regular

), but at least I have the Hallowed ground thing covered... so the Kurgan cant get me!