There's actually a book written on a modern revolution in the US - Unintended Consequences, wherein the freedom fighters - a group of folks with no central leadership, but a shared hatred of government tyranny, begin killing government agents (mainly ATF) until the federal government gives in to their demands for repeal of unconstitutional laws. There's no formation of groups of rebel soldiers hiding in the mountains then duking it out with the military. In this way the 'rebels' hit the real 'targets' - the government, while avoiding the difficult obstacles - soldiers and other military.

Also noteworthy - in those articles PJ linked about Afghan marksmanship (or lack thereof), the rifles being used to hit the most American soldiers aren't AKs but WWII era rifles that are both more accurate and more powerful. A modern hunting rifle is an improvement over those guns, and is used by many American hunters with even better marksmanship.

CR