Xbox Live Marketplace, what is best in life? "To offer demos to your users, see them download before you, and to hear the lamentation of their routers!" That is good. [That was rubbish. - Ed]
So is Ghost Recon: Advanced Warfighter; good that is, and Ubisoft's followed up its Blazing Angels demo from earlier in the week by popping a GRAW multiplayer demo onto Marketplace.
It's 358.94MB according to the Xbox (if it's lying I'll beat it), and allows you to play against other people on the Boneyard map in all competitive game modes, but none of the co-op ones.
For more on the game, check out our review from the other week.