"In September 1951 the Army had introduced a point system that tried to take into account the nature of individual service when determining eligibility for rotation home to the United States. According to this system, a soldier earned four points for every month he served in close combat, two points per month for rear-echelon duty in Korea, and one point for duty elsewhere in the Far East. Later, an additional category-divisional reserve status-was established at a rate of three points per month. The Army initially stated that enlisted men needed to earn forty-three points to be eligible for rotation back to the States, while officers required fifty-five points. In June 1952 the Army reduced these requirements to thirty-six points for enlisted men and thirty-seven points for officers. Earning the required number of points did not guarantee instant rotation; it only meant that the soldier in question was eligible to go home. Nevertheless, most soldiers did return home shortly after they met the requirement."
It seems that the idea that the points system was abolished before the war is a military urban legend. The entries on M*A*S*H should be changed to reflect the facts.
The Army did have a rotation-point system during the Korean war. A U.S. Army publication <http://www.history.army.mil/brochures/kw-stale/stale.htm>
states the following:
"In September 1951 the Army had introduced a point system that tried to take into account the nature of individual service when determining eligibility for rotation home to the United States. According to this system, a soldier earned four points for every month he served in close combat, two points per month for rear-echelon duty in Korea, and one point for duty elsewhere in the Far East. Later, an additional category-divisional reserve status-was established at a rate of three points per month. The Army initially stated that enlisted men needed to earn forty-three points to be eligible for rotation back to the States, while officers required fifty-five points. In June 1952 the Army reduced these requirements to thirty-six points for enlisted men and thirty-seven points for officers. Earning the required number of points did not guarantee instant rotation; it only meant that the soldier in question was eligible to go home. Nevertheless, most soldiers did return home shortly after they met the requirement."
It seems that the idea that the points system was abolished before the war is a military urban legend. The entries on M*A*S*H should be changed to reflect the facts.