Sony and Microsoft are still in disagreement over the latter’s acquisition of Activision Blizzard. According to Microsoft, despite a 10-year deal for Call of Duty, Sony continues to campaign against the acquisition. This was revealed in a filing with the Federal Trade Commission (FTC), which is challenging the acquisition itself.

Microsoft challenges Sony’s claims against Activision Blizzard deal

In the filing, Microsoft expresses its dismay and surprise at Sony’s ongoing campaign against Activision’s purchase, and argues that it has the right to demand that Sony produce certain documents to back up its claims. Microsoft further complains that Sony produced a “cherry-picked” document in response to an FTC subpoena.

“SIE inked a 10-year licensing deal with Microsoft for Call of Duty (“Microsoft-Sony Agreement”) that guarantees SIE better terms than it had with Activision,” Microsoft states. “One would think that would have marked the end of SIE’s campaign against the Microsoft-Activision deal. It did not.”

Microsoft then states that it’s “entitled to take discovery to test SIE’s assertions and seeks a narrow, targeted production of documents from SIE related to the Microsoft-Sony Agreement,” adding that Sony hasn’t committed to producing a single document in response to its subpoena.