There is a lot of good tactical advice to be found on the Flames of War forum. If you have any questions about any aspect of the game, the forums are a great place to start. Here, the Bard proudly hosts some of the finest tactical advice to be shared with that online community.

Scenario Tactics

Hold the Line Tactics (pdf) - Jon Cleaves
Breakthrough Tactics (pdf) - Jon Cleaves

Unit Specific Tactics

Panzer IV Primer (pdf) - Shan

If you are interested in suggesting your own tactics guide(s), please contact me.