‘I need to do this scene upside down’: what it’s like to act in a Call of Duty game

The performance-capture body suits, the annoying helmet cams, the makeshift props ... actors describe the experience of making video games where there's nowhere to hide'

The Call of Duty series is the action-movie blockbuster of the video game world. Loud, violent and filled with crazy stunts, these globetrotting military romps put their fictitious heroes through incredible physical danger, usually involving plane crashes, collapsing skyscrapers and vast firefights on sinking cruise liners.

So what is it like to actually star in one?