Lone Canuck Publishing produces some of my favorite campaign games because of how manageable, playable, and inexpensive they are. I can purchase my OB, set up, play, clean up, and prepare for the next CG date all in one session. Platoon to company sized engagements keep the playing to bookkeeping ratio right where I want it.
Also check out The Gamer’s Armory for these and other great Lone Canuck products