Description taken from PC version of this game

Combat Mission: Beyond Overlord is a turn-based 3D simulation of WWII warfare with an emphasis on tactics. Players will control squads, teams, platoons, battalions, and individual units. Each turn represents 60 seconds of combat -- each engagement generally takes about 40 turns. Combat Mission's focus is on historical integrity, and everything from weapons accuracy, armor effectiveness, orders of battle, and tables of order and effectiveness (TO&E's) have been created with realism in mind. ~ All Game Guide