Zombies Team (ZT): We don’t think any of us could have imagined what it would turn into. Activision Games Blog (AGB): As a team with some of Treyarch's most veteran writers, how have you felt the Zombies franchise has grown from being a secret game mode in Call of Duty®: World at War to today? Did you ever imagine back then that you and the team would be deep into hiding easter eggs and building these worlds?