The conference Microsoft has just begun and now we admire the launch trailer for
Call of Duty: Black Ops. Shows a mission of the game set in a forest, the graphics seems to be generally improved. Then you switch to cross a dark tunnel to reach an enemy camp where he is a helicopter. The man begins the assault on the Treyarch website and then steal the helicopter. The mission moves in the heavens and began aerial combat phase. This is followed by the systematic destruction of other encampments. The explosions and the interaction with water are masterfully realized and the overall impression is very positive.
Really a good start, I must say!
Update: now available demonstration of the game held at the conference
Call of Duty: Black Ops - E3 2010 Gameplay Video