A French soldier was photographed wearing a grinning skeleton facemask like one featured in the ultra-violent computer game Call of Duty while serving in Mali. br Senior French military officer Colonel. Thierry Burkhard said: 'This is unacceptable behavior. This image is not representative of action by France in Mali.' br Britain's Prince Harry has said he was 'probably quite useful' as a helicopter gunner in a recent four month tour of duty in Afghanistan because he played computer games like "Call of Duty.