Fourth Generation Tactical Decision Games
From William S. Lind via Global Guerrillas comes this 4GW training manual.
You may think you do not need facility in both 4GW theory and practice.
That might be true, if you were not already involved in a 4GW conflict.
Read that last sentence again, and think hard about it.
Run the exercises from both a Blue (as written) and a Red (OpFor) perspective.
More 4GW materials in the left margin under "Practical Resources".
Quite practical, I'd say.