School is a cut campaign mission in Call of Duty 4: Modern Warfare. Very little is known about this mission. All that proves its existence is a file called "compass_map_school.iwi" present in the game's source files. Additionally, a vision file called school.vision was found in the game's source files. Additionally, it is known at least two helicopters existed in the level, as seen in the picture (two helicopter shadows can be seen on the ground in the top left hand corner).