video game, Counter-Strike: Global Offensive, map development, SDK, level designer, 3D modeling, texture mapping, lighting effects, spawn points, bomb sites, tactical layout, cover system, realistic materials, urban environment, multiplayer map, competitive gameplay, first-person shooter, game assets, props placement, playtesting, optimization, high-resolution textures, ambient occlusion, dynamic shadows, interactive objects, custom scripts, Valve Hammer Editor, Source engine, game modding, community workshop, detailed environment, balanced map design, strategic points, choke points, ambient sound design, indoor and outdoor areas, real-time rendering, action-packed scene.