If you read our preview of Red Orchestra 2, you might be anxious to see some actual gameplay. Tripwire Interactive just released a high-definition video showing off a couple minutes worth. It's very hectic, and many different aspects of RO2 are displayed in a very short amount of time.
Red Orchestra 2: Heroes of Stalingrad comes out on September 13th, and if you have pre-ordered the game from Steam, you should have beta access soon. Feel free to watch this video on loop until then.