helicopter, zombie apocalypse, survival game, intense action, low-flying, searchlight, abandoned city, overgrown streets, hordes of zombies, panicked survivors, rooftop rescue, military operation, dynamic shadows, emergency broadcast, immersive atmosphere, realistic textures, firefights, debris, smoke effects, dusk lighting, chaotic environment, 3/4 view, high tension, adrenaline-pumping, interactive scenery, detailed cockpit, pilot uniform, fuel scarcity, resource management, in-game event, persistent world, helicopter crash site, survival horror, gripping narrative, player choices, consequences, immersive sound design.