Over the past couple of years I've worked up a campaign for Empire in Flames that's a bit odd. It's kind of like a D&D module, kinda like a board game, kinda like an extended Mordheim campaign. We just started playing recently, first report up on my blog at:
The rules will be up soon, still making some minor changes there and some missing bits to fill in.
I'm not certain, but I think we will probably end up having roughly fifteen to twenty "tactical scenarios" played via Mordheim skirmish rules by the end of the campaign. We went through three scenarios in the initial weekend.
The whole thing was inspired by a combination of watching way too many vampire movies, and a Seven Samurai style plot - heroes helping to defend a village / small town. It's cooperative; the player warbands are all pitched in together to defend the town.