There was a video put up on youtube that supposedly showed us the menu from Halo Reaches beta and a game mode called murder mode. This video was announced false by a Microsoft spokesperson. It just goes to show that you can't trust everything you see on the internet.

Source - xbox360.ign.com/articles/106/1...

10 years ago
Murder mode sounded a bit bad anyway to be honest so I didn't trust that at first... thing is its easy to fake a menu screen, its harder to fake gameplay. However you have got to think that this MS spokesperson could just be trying to fool you into thinking its false when it could be true to some extent.