1 person, male protagonist, gas mask, military uniform, rugged texture, armed with rifle, standing posture, underground metro station, dim lighting, abandoned train carriages, dystopian atmosphere, scattered debris, moss-covered walls, eerie shadows, 3/4 view, virtual reality headset, immersive experience, high detail, atmospheric perspective, cold color palette, survival action pose, post-apocalyptic Moscow, sci-fi elements, rust and dirt, glowing fungus, tense expression, first-person perspective, claustrophobic environment, LED lights on suit, reflective surfaces, steam and smoke effects, desolate and haunting.