Some of the doctrine presented in this CNN documentary may be outdated, as it references Sadam Hussein as currently being in power and references the 9/11 Terrorist Attacks as a recent event, placing its publication between 2001 and 2003. It is, however, highly informative about the evolution of U.S Army small unit tactics in urban terrain, and is well worth the viewing time.
Found this fascinating document while researching the history of small-unit tactics. It is a thorough overview of 50 years of U.S. Army infantry squad development, from 1945 through 1995. The text reviews the impact of increasingly lethal weapons, the resulting dispersal of troops on the battlefield, and how the squad’s composition was altered to allow greater flexibility to face a wider range of challenges. For a wargamer, it’s a great read. You can download the file here.