After the events of Richtofen's master plan. (Where every character is loli because why not)

A girl names Lucy from the CDC (Center for Disease Control) is chosen by Winry von Richtofen, a spirit which took over the zombies in order to take control of the World.

The world is destroyed by Maxis on an effort to extinguish his plans. Fortunately, for Richtofen, the world is not destroyed yet. So, with her influence, she starts a new plan to gain power and control the planet which she successfully does.

By mere luck, more of the Element 115 lands on Equestria. So, now is up to Lucy to trick the ponies into believing she knows what to do to stop the Zombie Outbreak and take control of the Site for Richtofen.

(COD Zombies crossover)