Find Peter’s Grave in the Shi no Numa of Call of Duty: Zombies and get yourself a the Wunderwaffe DG-2 as a reward.
In the earlier Call of Duty iterations, you have probably seen a guy hanging from the ceiling at the start of the game in Shi no Numa. In Call of Duty (Mobile) World at War, however, you see that the hanging man is missing.
There is a very good reason for this, as this missing person is tied to an interesting Easter Egg. This is a part of the Easter Egg in Shi no Numa in Call of Duty (Mobile). This is the Peter’s Grave Easter Egg, indicating that the hanging man might be Peter and must have been buried in this version of CoD.