Wartime disaster movie feel, one-shot, under the gray-blue morning light, a young messenger rushes out of an underground bunker torn open by artillery fire. The camera closely follows him at high speed, passing through muddy trenches, burning supply vehicles, exploded wooden bridges, and scattered fleeing crowds. Artillery shells continuously fall in the distance, with dirt, wood chips, flames, and smoke columns bursting continuously on both sides of the lens. Soldiers and stretcher teams cross the foreground, creating an extreme sense of presence. The protagonist climbs over a collapsed sandbag wall, slides down a waterlogged slope, crosses an open area covered with barbed wire and shell craters, and the explosion shockwave raises a huge dust cloud behind him. Finally, he rushes onto the ruins of a half-destroyed bell tower and inserts a glowing signal flare into a high-altitude device. The camera quickly pulls up, overlooking the entire burning battlefield and the advancing military formation in the distance, achieving a cinematic, realistic sense of war scale, strong rhythm, and no cuts.