Insurgency Developer Is Launching Another Good Online FPS, Day of Infamy
For now the game is still in early access which can be purchased on Steam at $19.99. Based on the Steam community's feedback, the game is not just another team-based WWII FPS, and it has pretty good quality. It has realistic gunplay, localized VOIP, constantly-released updates, and more.
But I also need to remind you that the game doesn't have a crosshair on your screen and the victory is depending more on smart decisions (like cunning, outflanking) than accurate aiming and fast reflex.