The opposition didn't wait for dawn to launch their attack; at four in the morning, following a thunderous explosion, the opposition began their assault. Based on the previous day's combat performance on both sides, Gao Yang had thought it would take a prolonged attack for the opposition to possibly penetrate the Aziziya Barracks, yet reality proved Gao Yang wrong. The battle lasted less than an hour before the opposition breached the first and highest outer wall.
Everyone, including Gao Yang, was convinced the decisive moment had finally arrived, but it turned out they were all mistaken. Once the opposition entered the labyrinthine interior of the Aziziya Barracks, their progress faltered. The Sirte soldiers, fiercely loyal to Gaddafi, engaged in intense urban warfare with the opposition inside the barracks. The fighting that started at dawn had Gao Yang and his comrades anxiously awaiting until noon, yet the opposition had not breached their last line of defense.