power armor, Hellcat, Fallout 76, modifications, T-51b helmet, red headlamp, jetpack, black paint, rust texture, steel structure, heavy-duty material, Brotherhood of Steel insignia, wasteland environment, post-apocalyptic, abandoned buildings, irradiated plants, dusty atmosphere, sunset lighting, wide-angle shot, dynamic pose, action scene, energy weapons, combat-ready stance, scavenged parts, custom decals, reinforced joints, survival gear, high-tech upgrades, immersive detail, 3/4 view, dramatic shadows.