"Best wishes to the hardworking team at IW," tweets Modern Warfare 3 co-developer.

Call of Duty: Modern Warfare 3 co-developer Sledgehammer Games will not be involved in Call of Duty: Ghosts, the studio has confirmed.

"Congrats to @InfinityWard on #CODGhosts!" tweeted the studio. "Our team is heads down on our next project, but best wishes to the hardworking team at IW!"

Sledgehammer Games was founded in 2009 by ex-Visceral Games heads Michael Condrey and Glen Schofield. The team was originally working on a third-person Call of Duty spin-off, but the project was cancelled when the studio was presented with the chance to work on the main series with 2011's Modern Warfare 3.

The studio was last seen recruiting for what it dubbed "the next Call of Duty title," which suggests Activision may have another Call of Duty title already in the works.

Call of Duty: Ghosts was announced by Activision yesterday, with the game coming to the Xbox 360, PlayStation 3, PC, and next-generation platforms. Call of Duty: Ghosts' gameplay will be shown during the unveiling of Microsoft's next-generation console on May 21.

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