Want to relive World War 2? DDay Normandy is an open source first person shooter and a complete modification of Quake 2. Though the game is no longer being developed, there have been slight updates from time to time including new maps and models.
Germans vs Americans
Just like the war, its an all out German American Battle. You fight with the backdrop of a European village with guns and knives. There have been additional expansions for including Russians and the Japanese if you feel like getting more countries involved in this multi player shootout.
