How virtual reality is putting the sport into esports

The players move slowly and cautiously, each carrying a rifle, hunting out their enemies in steaming jungles, baking deserts or even the surface of Mars.

They can hear, see and shoot their foes, but the field of battle is actually a vast warehouse north of Paris and the players are moving in immersive worlds thanks to virtual reality (VR) headsets.

This is the latest attempt to bring an element of physical exercise to the world of competitive gaming known as esports.