"Immediate Action" was a planned campaign mission in Call of Duty 4: Modern Warfare. All that exists to prove its development is a file called "compass_map_cqb_2.iwi". In the mod tools, in the raw/English/localizedstrings folder, a file called "embassy.str" can be found. The string file includes information about the level, such as its location, the level name, the date, and various objectives.