I'm surprised no one here has mentioned this game yet. It's by the guys responsible for RUSE. The game is set in the 1970s-1980s in Europe. The Cold War has gone hot. It's a wargame that models ammunition, fuel, and modular damage of vehicles. It includes hardware from France, West and East Germany, Czechoslovakia, Poland, USSR, USA, and UK. There's like 300+ units, realistic engagement ranges, and huge maps.
Website:
http://www.wargame-ee.com/
Unit database:
http://www.wargame-ee.com/index.php?rub=database-home
Website:
http://www.wargame-ee.com/
Unit database:
http://www.wargame-ee.com/index.php?rub=database-home