This is more of a trigger tutorial or a utility than a scenario. It shows how to create an endless flow of enemy units attacking a spot on the map. The units are created at the barracks and tasked to move downhill. I took my squad of cav archers and bypassed the enemy units to the top of the hill and destroyed the barracks. But that's not the point of this thing. The point is using triggers to create a mass attack without starting with 200 units already created. This is a useful trigger trick, posted quite early in the history of scenarios.