Glen Schofield's Twitter Feed has further indications Sledgehammer Games is working on one of the three upcoming installments in the Call of Duty series of military shooters. This tweet and this one both have recent mentions of Call of Duty, and this tweet reflects on game content, saying: "Working w/ military guys- their stories will blow you away. Names/locations will change but some situations going in the game- real stuff!" Thanks IndustryGamers.