Call of Duty is one of gaming’s most timeless series, dating back to the early 2000s with annual new releases since. Despite being over a decade old now, the CoD series remains popular among both long-time players and younger newcomers alike. Activision and Sledgehammer Games just saw the release of Modern Warfare 3, and it looks like a new Black Ops may follow suit. According to recent leaks, Treyarch is allegedly working on a brand-new Black Ops game set during the Gulf War.