2009's Call of Duty: Modern Warfare 2 and 2012's Call of Duty: Black Ops 2 were two of the best-selling video games in the UK last month. Nintendo doesn't share digital sales with the charts, so it may be that the game would have charted higher if we knew the download figures. 1 | UK Boxed Charts Nintendo Switch sales up 39% across Europe in May | European Monthly Charts GamesIndustry