M4 Tank Brigade is now available on Steam Early Access, offering the chance to command a platoon of tanks in World War II combat in single-player play or online multiplayer. This trailer offers a look, and here's a description: "M4 Tank Brigade focuses exclusively on commanding multiple WWII armored vehicles in real time, with combat that takes place on 3D battlefields spread over hundreds of square miles. Tank commanders control their own platoon (four tanks) and up to a full battlegroup of 20 armored vehicles -- coordinating both air and artillery support. In a split second, players can jump into any vehicle in their command net to turn the tide of battle."