zombies map, Cold War era, simplistic layout, bunker, abandoned facility, snow-covered ground, eerie atmosphere, dim lighting, moonlit sky, scattered debris, military equipment, undead soldiers, survival horror, close-quarters combat, atmospheric fog, desolate landscape, chilling wind sound effects, decaying structures, rusted metal textures, concrete walls, barbed wire fences, watchtowers, searchlights, 3/4 view, high contrast shadows, cold blue color palette, desaturated tones, claustrophobic corridors, strategic choke points, minimalistic design, easy navigation, player-friendly.