Not only that but Activision is a very big live-service game company. Which is something Microsoft didn't really have much of. Their profile in that area was honestly pretty small overall. If the acquisition goes through next year it will tremendously boost their presence in that area of the market. They'll just need to do a lot of house cleaning and refocusing since some parts of that company, like Blizzard, are a mess.The inofficial version is that MS bought AB mostly because of the mobile division and because the price tumbled after the sexual harassment allegations.