For all of us looking for quality reading material about military tactics, Armchair General has been offering the "Tactics 101" series since 2006.
These articles cover a lot of tactical mileage and are written by two professional soldiers. This articles consolidate a lot of information spread across several US Army and US Marine Corps doctrinal publications.
Armchair General should consider putting all these articles together, print them and sell them as a stand-alone supplement. It would be a pity if this material gets lost in some website transition or archiving.