No Russian, No Foolin’ Around

I don’t know who Michael Barnes is, nor why he decided to make the world’s most badass machinema with Modern Warfare 2, titled “No Russian.” However, he did, and even though I haven’t played the game, I can’t even imagine how much work went into getting these shots and editing it all together. Help me out — is all the dialogue here from the game? Is this all from one mission or several? Because right now I’m impressed, but I’m pretty sure if I knew more I’d be totally blown away.