The picture says it all really. Having got underway recently, the closed beta for Rainbow Six: Siege has been extended for a few extra days, giving you the opportunity to get a little more time with Ubisoft's team-based tactical shooter.If you pre-ordered the game (or nabbed one of the 50 codes we were giving away on our live stream a few days ago), you'll have had your closed beta invite by now. Be sure to check your spam folder if you haven't received yours yet, says Ubisoft.You'll be able to play the Rainbow Six: Siege closed beta for an additional 3 days, extending the duration from its previous end date of 29th September to Thursday, 1st October. Cashback! The beta has been experiencing various server issues, but should now be running smoothly.