Microsoft’s gaming quarterly revenue has risen by 49 percent following the company’s Activision Blizzard purchase. The tech giant completed its purchase of the gaming company – which has produced franchises such as ‘Call of Duty’, ‘World of Warcraft’ ‘Overwatch’ and ‘Diablo’ – in October for $68.7 billion, and Microsoft has since seen a colossal 49 percent increase in revenue compared to the equivalent quarter last year, which equated to $2 billion. The company has also recorded a 61 percent boost in Xbox content services and revenues, with the subscription service, Game Pass – which allows us…