Plot: Call of Duty 4: Modern Warfare is a 2007 first-person shooter developed by Infinity Ward and published by Activision. It is the fourth main installment in the Call of Duty series. The game breaks away from the World War II setting of previous entries and is instead set in modern times. Wikipedia
Plot: Call of Duty: Black Ops III is a 2015 first-person shooter video game, developed by Treyarch and published by Activision. It is the twelfth entry in the Call of Duty series and the sequel to the 2012 video game Call of Duty: Black Ops II. Wikipedia