confronts him and discovers he has mutated into a monstrous figure. After a long fight, Oz is finally killed, and the group proceeds to burn his mutated corpse, vowing vengeance against Atlas. In the aftermath of the incident, Lennox is promoted to Lieutenant Colonel, and he helps Decker enlist in Sentinel as a full-fledged soldier; Kahn files a lawsuit against Atlas, with the help of Lilith, who now works as a hacktivist. Unbeknownst to the group, Atlas has already created clones of Oz, all kept hidden under the Trident facility. Development Before being switched to become the co-developers of Call of Duty: Modern Warfare 3, Sledgehammer Games was already working on a Call of Duty game called Call of Duty: Fog of War. Fog of War was announced before Modern Warfare 3 and after Black Ops. It was to be set during the events of the Vietnam War and was said to be an action-adventure third-person shooter video game. A Call of Duty massively multiplayer online game was also in development. Activision Publishing CEO Eric Hirshberg later stated that Modern Warfare 3 was not the same title as Sledgehammer Games' action-adventure Call of Duty game. When asked if the action-adventure game was also in development, Hirshberg then stated that the Sledgehammer team was fully focused on Modern Warfare 3 and that their own title had been put on hold. A new game in the Call of Duty series was announced to be released in November 2014. Director Michael Condrey said that the majority of the engine has been built from scratch. He stated that although there are lines of the old code left, there are new rendering, animation, physics and audio systems. With the improved engine, the audio has been built from the ground up. According to Don Veca, who worked on Advanced Warfare, the audio in the game is very advanced which gives the game a genuine and great feel. Saying that audio doesn't come last as it did in previous titles, Glen Schofield says "We make sure that audio is just as important as anything else and Don's in there from the start with us." Another objective that Sledgehammer accomplished with Advanced Warfare were the animations. The facial animating system and set is the same as James Cameron's upcoming Avatar: The Way of Water. According to Activision, the new three-year Call of Duty development cycle meant that Advanced