The Call of Duty franchise is one of gaming’s big beasts. Ever since it made its debut in 2003, Activision Blizzard has been entertaining us with stories of derring-do, brutal battles and stories that span the Second World War to the present day.
Over the course of its two-decade lifetime, the franchise has made an estimated $1.5bn in revenue, changed first person shooters forever and released a whopping 22 games in the process.
