Louverture used infiltration and feigned surrender as siege tactics

Evidence

To take the town, he set in motion a complicated ruse. In mid-August he announced to the British officer Brisbane that he intended to surrender, and had two of his loyal officers go over to the other side with their troops. They were in fact infiltrators whose mission was to “spread disaffection” within the British camp. Having gained the trust of Brisbane, Louverture’s agents turned on him and nearly managed to assassinate him. As the mayor of Saint-Marc led an uprising in the town, Louverture’s forces attacked. — Dubois, Laurent, Avengers of the New World_ The Story of…, 624