Infinity Ward's Modern Warfare games have topped the $1 billion mark and helped launch Treyarch's Call of Duty: Black Ops game top $1 billion in sales last year. The Call of Duty franchise is currently the biggest mainstream brand in gaming. The November 8 th release, Call of Duty: Modern Warfare 3, the first game developed without West and Zampella, is expected to sell 25 million copies and generate over $1.2 billion for Activision, according to Michael Pachter, video game analyst, Wedbush Morgan Securities. Activision enlisted two game developers, Infinity Ward and Sledgehammer Games, to create the new title. Since these lawsuits, a war of words have been volleyed between Activision and EA. The two giant game makers butted heads last fall with Call of Duty: Black Ops and Medal of Honor going head-to-head at retail. Call of Duty won that battle.