Infinity Ward bosses Jason West and Vince Zampella were allegedly in contact with the likes of Electronic Arts prior to their dismissal earlier this week.
That's according to court submissions cited by G4TV (thanks VG247), which include, "Documents regarding West and Zampella's communications with Activision's competitors, including but not limited to Electronic Arts."
West and Zampella announced earlier this week that they were suing Activision for "at least $36 million" according to Bloomberg, and also wanted control of the Modern Warfare name.
"After all we have given to Activision, we shouldn't have to sue to get paid," Zampella had said in a press release announcing the suit.
Yesterday Activision responded to the suit. "Activision is disappointed that Mr Zampella and Mr West have chosen to file a lawsuit, and believes their claims are meritless," the company stated.
"Over eight years, Activision shareholders provided these executives with the capital they needed to start Infinity Ward, as well as the financial support, resources and creative independence that helped them flourish and achieve enormous professional success and personal wealth.
"In return, Activision legitimately expected them to honour their obligations to Activision, just like any other executives who hold positions of trust in the company.
"While the company showed enormous patience, it firmly believes that its decision was justified based on their course of conduct and actions.
"Activision remains committed to the Call of Duty franchise, which it owns, and will continue to produce exciting and innovative games for its millions of fans."