"Nom, nom, nom", that's the noise you're going to hear whenever you get a little adventurous in Call of Duty's iconic Zombies mode. Those Zombies are out to eat your brains and, eventually, we will all become brain soup. It's just a matter of time, after all. Sometimes, though, you can have a little bit of fun before you meet your inevitable demise. In this case, though, it's purely a horror show. Here are the top five worst Zombies Modes in Call of Duty history.