1) Most commonly, preauthorization and precertification refer to the process by which a patient is pre-approved for coverage of a specific medical procedure or prescription drug.
No Call of Duty Modern Warfare 4 game exists. There is, however, a Call of Duty 4: Modern Warfare and a Call of Duty: Modern Warfare 2. There are currently no plans by the Calâ¦l of Duty publisher, Activision and its developers, Treyarch & Infinity Ward to make a Call of Duty: Modern Warfare 4. As of now the next scheduled release of Call of Duty is Modern Warfare 3, which will be slated for a November 2011 release.
Call of Duty: World at War, also referred to as Call of Duty 5 or simply World at War, and abbreviated as CoD: WaW or WaW, is a first-person shooter game produced by Treyarch, and is the first game in the Black Ops timeline.he gameplay for Call of Duty: World at War remains the same as Call of Duty 4: Modern Warfare. See Infinity Ward Game Engine Mechanics for more information. The game was re-released in the Call of Duty: The War Collection as part of a bundle.