The Beginning of The End? ~ an Exo Zombies story

Atlas Corporation has developed the ultimate biochemical weapon known as Manticore Its sole purpose was to cripple/end Sentinel as well as American superpowers. Manticore was powerful, TOO powerful...

Now Manticore has taken over the world, littering the globe with the undead, and supposedly taking Atlas down with it. Little hope is left, little resistance is left. That hope is found from where it all started...