As part of the Season One release in Call of Duty: Vanguard, many new additions and features have been brought into the game. New weapons, maps, and a new Anti-Cheat system have all been good additions to the game.
However, one addition that players have seen isn't even available yet, a brand new map. Activision has been bringing back old maps into Vanguard as well as new original ones, and while waiting for their lobby to load into a game, one Redddit User caught a glitched glimpse at a work-in-progress map named "Casablanca."
The lobby couldn't access the map at all or play in it. However, you can get a clear glimpse of the outline of the map in the thumbnail of the map in the video. Other players in the comments noted that they had the same glitch before. However, no one was actually able to load into the Casablanca map, with the game instead kicking players back to the main menu.
Since the lobby was a 14 vs. 14 set up, we can expect this map to be one of the larger ones in CoD Vanguard. The thumbnail shows a group of boxed images showing different points in the map, one of them will likely be the main thumbnail for the map whenever it is set to drop.
Neither Activision or Raven Software have commented on the glitch, or if we will be receiving a "Casablanca" map soon, but once the glitch receives more attention, we may get answers. Since it’s already named in the game files, players may not have to wait long.