This is obviously fake...
The menu couldn't be that badly designed.
If this were real (which it most likely is not), I would not even consider buying the game.
It's only the BETA, the BETA doesn't need a good menu as the people making it are focusing on the gameplay.
The beta of black ops was the same style as when it was released, that isn't even the MW3 logo and would Infinity Ward/Sledgehammer Games allow someone called "ProStarModder" take part in thier beta?
This is fake. I love how you don't show in-game footage, only that footage there, and it really isn't hard to edit the lobby images.