The Haunting update for Call of Duty: Warzone has arrived with Black Ops 7 Season 6, and while players may be grinding to get a new secret free Camo, there is another Easter Egg that players can complete. By stopping the Ghost Train on Haunted Hollow, you can open the Mystery Box and, if you are lucky, get the legendary Ray Gun Wonder Weapon. Here is how to get the Ray Gun in Call of Duty: Warzone.