In a week of Xbox leadership changes, longtime Treyarch boss Mark Gordon is retiring from the Call of Duty studio to "focus on his next chapter"

Mark Gordon, studio head at Treyarch for 22 years, is retiring from the Call of Duty developer. Gordon was instrumental in the development of titles like Call of Duty: World at War and the Black Ops series. Treyarch veterans Kevin Hendrickson and Yale Miller will take over as co-studio heads following his departure.

• GAME Call of Duty: World at War
• COMPANY Activision
• COMPANY Treyarch
• GAME Call of Duty: Black Ops
• COMPANY Xbox
• GAME Call of Duty
• GAME Call of Duty: Big Red One