Activision Blizzard does not publish games under its central name and instead uses the Activision Publishing subsidiary and its studios to publish games.[24][failed verification] In early 2010, the independent studio Bungie entered into a 10-year publishing agreement with Activision Blizzard.[25][26] By the end of 2010, Activision Blizzard was the largest video games publisher in the world.[27] The 2011 release of Activision Blizzard's Call of Duty: Modern Warfare 3 grossed $400 million in the US and UK alone in its first 24 hours, making it the biggest entertainment launch of all time.[28] It was also the third consecutive year the Call of Duty series broke the biggest launch record; 2010's Call of Duty: Black Ops grossed $360 million on day one; and 2009's Call of Duty: Modern Warfare 2 brought in $310 million.[6] Call of Duty: Black Ops III grossed $550 million in worldwide sales during its opening weekend in 2015, making it the biggest entertainment launch of the year.[7][8]