Enlarge / A small selection of the characters that would be part of Microsoft if its proposed Activision/Blizzard merger is allowed to go through. (credit: Activision Blizzard King) Activision isn't pulling any punches in its fight against the UK's regulatory attempts to block its merger with Microsoft. In a "motion to intervene" recently filed with the Competition Appeal Tribunal (and recently summarized on the tribunal's website), Activision excoriates the UK's Competition and Markets Authority for a "flawed conclusion" that was variously "unlawful, irrational, and/or disproportionate" and "arrived at in a procedurally unfair manner." The appeal takes particular issue with the CMA's focus on cloud gaming in a vacuum, without taking into account competition from "native gaming" via games running on local hardware.