Screenshot: Activision To sign up for our daily newsletter covering the latest news, features and reviews, head HERE. For a running feed of all our stories, follow us on Twitter HERE. Or you can bookmark the Kotaku Australia homepage to visit whenever you need a news fix. Secrets have long been a part of the Call of Duty Zombies formula. But while players have loved hunting for Easter eggs to reveal new bits of lore, according to Black Ops Cold War developer Treyarch, very few players find these secrets in-game. So for its latest take on zombies, Treyarch has decided to make the secrets easier to find.