Activision recently made the call to shift Toys for Bob's focus to the Call of Duty: Warzone battle royale, pointing yet another one of its studios at the mega-popular franchise. With Call of Duty consistently being the top-selling video game released in any given year, it makes sense that Activision is investing so much of its resources into it, but regardless, some may still be surprised at just how many studios are actively working on CoD.
As pointed out by CharlieIntel on Twitter, the Call of Duty franchise has at least nine developers actively working on main series Call of Duty content. This includes Call of Duty's lead development studios Infinity Ward, Raven Software, Sledgehammer Games, and Treyarch, along with a variety of other Activision-owned studios providing support. And that's not even counting Call of Duty Mobile, which is developed by Tencent's TiMi Studios.
Raven Software was just recently allowed to take the lead on Call of Duty: Black Ops Cold War's campaign and is currently handling Call of Duty: Warzone. Previously, Raven Software was yet another one of the franchise's support studios, joined by Beenox, High Moon Studios, Activision Shanghai, Demonware, and the latest studio to join the lineup, Toys for Bob.
Beenox has been assisting on the development of Call of Duty since the release of Call of Duty: Black Ops Cold War, whereas High Moon Studios has been assisting on the franchise since 2014's Call of Duty: Advanced Warfare. Before it was assigned to assist on the development of the Call of Duty franchise, High Moon Studios made games like Darkwatch, Deadpool, and perhaps most famously, Transformers: War for Cybertron and Fall of Cybertron video games.
Prior to being relegated to the Call of Duty franchise, Beenox was perhaps best known for developing licensed games, like various Activision-published Spider-Man titles and even the Bee Movie game adaptation. Compared to some of the other studios assisting in Call of Duty's development, Beenox has been given an arguably more noteworthy role, as it was in charge of optimizing the Call of Duty: Black Ops Cold War PC port.
Activision reassigning its various studios to focus on other things is not a new practice in the slightest and it happens with other franchises as well. For example, after Vicarious Visions launched Tony Hawk's Pro Skater 1 + 2, the studio was sent to Blizzard to develop the upcoming Diablo 2: Resurrected game.