We've met all the Operators and played all the betas, and now, Rainbow 6 Siege stands poised to deliver its distinctive brand of methodical action to PS4, Xbox One, and PC with its final retail release on Tuesday, December 1. But because the experience revolves primarily around online multiplayer--which, at first, will be locked behind a progression wall--GameSpot will be holding its review until we've had a chance to test server stability, evaluate the progression system, and gauge just how successfully Siege teaches players to embrace its team-focused setup.