Within this list, we will be taking a look at the 15 greatest Call Of Duty Zombies maps of all time. However, there are certain maps that really have stood out, whether it be down to the theme of it or the story that the game plugs into it. Updated by Matthew Wilkinson on April 18th, 2020: The Zombies mode of Call Of Duty has always proven to be incredibly popular, with every map having some positives and negatives. Here is our guide on how to upgrade DIE Shockwave in Outbreak, including a map for all four locations. In this guide, we’ll break down each of the locations for you so that you can find the Ice, Electrobolt, Nova 5, and Thermophasic upgrades on your own. Each version of zombies has its own unique twist, and one of the most crucial parts of whether it is great or not is the map itself. There are four different maps inside Black Ops Cold War Zombies Outbreak that contain the DIE Shockwave upgrade Easter Egg. Whether you brave it alone, play with friends, or go online to team up with others, battling against a horde of zombies is a whole lot of fun and throughout the years there have been some incredible versions of it. RELATED: The 10 Greatest Call Of Duty Maps, Ranked The zombies mode has always been a firm fan favorite amongst gamers in the Call Of Duty franchise, with many gamers spending the majority of their time battling the undead rather than doing anything else.