I don't think that the TEOTWAWKI scenario is more then a remote possibility, but this site that I came across has a lot of information about urban warfare tactics that make for some "interesting" reading. It's a Geocities site, but many of the articles and links are to military or think tank (ie:Rand) sites.

Military Operations on Urbanized Terrain (MOUT)

-- Online2Much (ready_for_y2k@mindspring.com), June 03, 1999

Answers

Link to the below and see some of the things available.

http://carlisle-www.army.mil/usawc/Parameters/parahome.htm

x

-- x (logo@yoyodyne.org), June 03, 1999.