May 23, 2011 by Paul Curtin
A little over a week ago after details started to leak on Modern Warfare 3, Activision quickly decided to officially announce Call of Duty: Modern Warfare 3 via a brand-new YouTube channel with a short teaser trailer.
While the first teaser trailer was quickly thrown online and basically showed nothing, the latest official trailer is full of in-game footage and gives some info on the campaign which looks to bring the war to countries all over the world with a World War 3 plot. Check out the full-length HD trailer below.