30-Second Zombie Apocalypse Action Trailer

Create a 30-second photorealistic live-action blockbuster zombie action trailer video in 16:9 horizontal format.\n\nSTRICT TEMPORAL & SEQUENCE ANCHOR DIRECTIVE (CRITICAL ENGINE EXECUTION):\n\nThe video generator MUST execute narrative actions in EXACT CHRONOLOGICAL ORDER step-by-step across the continuous 30-second timeline. Do NOT skip, blend, or reorder any steps. Follow the timeline anchors sequentially:\n\nStep 1 (0–6s): Armored truck smashes barricade, squad alights into ruined plaza as feral zombies swarm -> Step 2 (6–12s): Vance fires underbarrel grenade launcher unleashing explosive fireball, Maya executes dual-pistol spin dodge -> Step 3 (12–18s): SLOW-MOTION BEAT: Gunner unleashes rotary minigun wall of lead in 60fps frozen shell casings -> Step 4 (18–24s): Recon sniper green laser headshots leaping zombies, squad tactical retreat -> Step 5 (24–30s): C4 detonation wipes out horde, Unit Zero holds heroic battle stance under searchlights as title hold resolves.\nEnforce explosive kinetic pacing, high-velocity choreography, advanced fire, fluid, and shrapnel simulation, and zero lag.\n\nUse separate production sheets for Commander Vance, Maya, Gunner & Recon, Feral Infected, Weapons & Tactical Props, and Metropolis Survival Zone. Keep Vance's eyebrow scar and olive gear, Maya's braided hair and dual pistols, Gunner's minigun, Recon's green IR laser, zombie pale veined skin, and ruined sunset city setting consistent throughout.\n\nVISUAL STYLE:\nPhotorealistic live-action 35mm blockbuster trailer cinema quality, high-contrast apocalyptic lighting (deep orange sunset vs burning fire vs green IR lasers vs bright muzzle flashes), volumetric smoke, flying brass shell casings, and blood-fluid simulation, zero 3D or anime look.\n\nENVIRONMENT:\nRuined megacity plaza at dusk, abandoned burning vehicles, overturned buses, shattered glass skyscrapers, storm clouds, burning oil drums, debris-strewn concrete.\n\nAUDIO DIRECTIVE:\nBackground Music: High-octane cinematic trailer score with thunderous orchestral drums, rising brass horns, aggressive industrial synth pulses, dipping into deep sub-bass during slow-motion, exploding into a triumphant crescendo.\nSound Effects: Heavy engine roar, barricade crash BANG, heavy automatic rifle fire, rotary minigun spin-up roar, grenade explosion blast, bone-snapping strikes, bullet shell clatters.\nVocal Audio: Tactical radio commands from Vance, lethal exhales from Maya, terrifying screeching roars from the feral zombie horde.\n\nTIMELINE:\n0–6s (THE AMBUSH & ENTRY):\nBegin exterior. High-speed tracking shot. An armored 4x4 rescue truck smashes through an abandoned barricade in a ruined city plaza at dusk under a deep orange sunset sky. Commander Vance, Maya, and the squad l