space marine, power armor, bolter gun, dynamic pose, battle stance, grimdark atmosphere, war-torn battlefield, futuristic gothic architecture, alien monsters, orks, tyranids, chaos demons, explosion effects, fire, smoke, debris, dramatic lighting, high contrast, action-packed, detailed armor texture, metallic reflections, energy shield, warhammer 40k, tabletop miniatures, strategic positioning, squad formation, overhead view, intense combat, science fiction, dystopian environment, strategic gameplay, tactical map, HUD elements, real-time strategy, turn-based mechanics.