You might be able to use this with FoW.
http://sg.tacticalwargames.net/fanatic/51bfk.pdfThere was also a campaign out in Fanatic, Storm Over Ghenna. I don't see it on this page though:
http://sg.tacticalwargames.net/fanatic/Alternatively there's a few board-game based campaign systems that Battlefront puts out. They can be used as stand along board games or as a map based campaign tracker:
Flames of War Firestorm Campaign: Operation Bagration
Flames of War Firestorm Campaign: Operation Market Garden
I've really never found a well-thought-out/add-as-much-or-as-little-as-you-want generic campaign system in any genre.