Apparently someone at Activision must be convinced that, in order to promote the purchase of a CoD made in Treyarch and help publish a demo of the previous title by Infinity. This is what in fact happened two years ago before the launch of Black Ops, and today it is repeated with the release of a single player demo of Call of Duty: Modern Warfare 3 , which will allow you to play all throughout the first mission of the game, titled "black Tuesday" and set in the financial district of New York. The demo will 1.04 GB and accodabile from this page .