detailed Gorod Krovi map, Call of Duty Zombies, in-game guide, battle-worn structures, post-apocalyptic Moscow, fiery skies, destroyed buildings, overgrown vegetation, rusted tanks, dragons flying overhead, Pack-a-Punch machine location, zombie spawn points, mystery box locations, perk-a-cola machines, weapon wall buys, interactive map elements, Easter egg steps, high contrast lighting, dynamic shadows, 3/4 top-down view, detailed textures, strategic points of interest, intense action poses, soldier outfits, survival horror atmosphere, mid-action reload, glowing eyes zombies, atmospheric fog, immersive environment, strategic gameplay layout.