contract and insubordination"; the move caused several other Infinity Ward staff to resign. Zampella and West created a new studio, Respawn Entertainment, with help from Electronic Arts' partner program, hiring the majority of those that departed Infinity Ward in their wake. Zampella and West filed a lawsuit in April 2010 against Activision, claiming unpaid royalties on the studio's Call of Duty: Modern Warfare 2. Activision filed a countersuit against the two, accusing the pair of being "self-serving schemers". Activision later sought to add Electronic Arts to their suit, discovering that Zampella and West had been in discussions with them while still working for Activision, and further added claims against Zampella and West that the two had not returned all material related to Call of Duty while they were working at Respawn. A separate lawsuit was filed against Activision in April 2010 by several current and former members of Infinity Ward on the same basis of lack of unpaid royalties. All parties came to an undisclosed settlement to end all suits by May 2012. Electronic Arts and Activision had settled separately on Activision's charges of poaching employees, while the suits between Activision, Zampella, West, and the Infinity Ward employee group were settled by the end of May 2012. All settlements were made for undisclosed amounts. See also Lists of video game companies List of video game publishers Notes References External links 2008 establishments in California American companies established in 2008 Companies based in Santa Monica, California Former Vivendi subsidiaries Holding companies established in 2008 Holding companies of the United States Video game companies established in 2008 Video game companies of the United States Video game development companies Video game publishers Announced mergers and acquisitions