During the Second World War the United States Army implemented many innovations developed after the First World War.  One of the most significant was the improved command and control systems and methods for artillery fire.  Interviews with German officers after the war confirmed the dread the Nazi armies had of American artillery, which was superior in action in their opinion to the Soviet masses.  This program recreates the training and actions of the "nerve center" of American artillery, the Fire Direction Center.  The Fire Direction Center used slide rules, protractors, maps, and tables to rapidly calculate the adjustments to the cannons required to hit targets up to 15 miles away.   By the end of the war, a typical FDC could direct shells on target within one minute of a call for fire from the front.

Actual WW2 veteran telephones, switchboards, and other authentic reproduction equipment adds to the MVEP experience, but with a little imagination teachers can recreate the calculation elements of the simulation in their own classrooms.