2. An Alamo type battle where the entire map is like one factory or monastery, etc. There would be several cappable objectives, more than could be defended for long. The farther attackers got into the citadel the closer the inner rings of objectives would be, with a final, hard to penetrate capzone, like a bunker or chapel at the center. The attackers would have to decide if they should attack from one side in force, cut their way to the center and then mop up survivors in the other quadrants, or if they should lay siege, taking a full outer ring and then the next, until they got to the surrounded center objective. But time might run out (which would stand for the defenders being relieved by reinforcements.