First off I would like to say that I wasn't sure where to put this.
Now on to the game. Before you read this you have to have a rival or two to play with. Playing this way changes nothing in Heroscape gameplay, same rules, but the difference is it's kind of like a campgain. Everytime you play a match with your rival, you record the stage and mark it on a map. Then for the next game you play, your rival could try to retake the map, or you could attack a different stage. Each time you play a stage, you mark it on the map. So say your rival has just recaptured a base you've taken before, now he can set up a defense at that base and attack stages around it. The campgain ends when your rival captures your main base which is a stage that gives you an large advantage. When played with three or four people, teams could be formed, or broken, and different battles could happen at the same time. This is just another way to enjoy Heroscape!