As an outline of the tactical maneuver that will be tested in the wargame - simulated battle - of chapter 3, we present the chess Zukertort Irregular Opening as a model, where we will consider a hypothesis that: even if Wallace had decided to accept battle, he could have avoided massacre if it had made better use of the terrain. The flanks of the army will be anchored in the Callendar Forest, protecting it from English cavalry involvement and maintaining a retreat axis; in this tactical deployment the army will form a large convex wedge towards the enemy, with the schiltrons in semicircles. The archers will form a moving group inside the wedge. The cavalry will be kept in reserve, gathered in the center; and at the technical level, to hinder the convergence of English cavalry charges as well as the Welsh arrows, the Scottish line will be expanded by the increase in the number of schiltrons, reducing the number of troops in each of them.