Call of Duty: Modern Warfare 3 takes place after the story of Modern Warfare 2. Both are great games, go check them out. Both games(and the entire Call of Duty franchise) is owned by Activision. Call of Duty: Modern Warfare 3(2011) was made by Infinity Ward and Sledgehammer Games. Infinity Ward made first Call of Duty game, which was inspired by Medal of Honor and WWII. Call of Duty 1 released in 2003, October 29.