I don't want to do away with Zombie Nation. It is awesome before the game. Especially if you are in a section where everyone is jumping in tandem. I agree with PowderSpringsJacket88. It wouldn't hurt to have an entrance anthem that is totally ours.
My biggest problem is that it goes on WAY too long. Everybody's just kind of tired and half assing it by the end. It would be good in a shorter version and as a lead in to a more unique crowd pumper upper.