LOS ANGELES — His name is Riley. Unlike his squad mates in the next installment of the rabidly popular “Call of Duty” series, he’s not adept at sniping enemy combatants or piloting drones. He can’t even pick up a gun. “Call of Duty: Ghosts” isn’t due until November, but Riley has already become the breakout star of the military shoot-’em-up. He even has an unofficial Twitter account — @CollarDuty.October 19, 2013 8:39 p.m. read more..