Matt76, You have it right. This is what I see. Cities will be let go to burn and at the end they will come in but I am not sure if it will be to save the people left. The people left will be hardcore that is why they made it. So they will clean up what is left. I will be one of them but I will take some of them with me.
I am not sure about the rural areas. They will get hit by a special group trained for this.