grimdark sci-fi environment, Warhammer 40k universe, elite enemy units, heavily armored, Chaos Space Marines, Plaguebearers of Nurgle, Skitarii Rangers, detailed armor textures, rust and corruption, menacing poses, wielding chainaxes, plasma guns, dark alleyways, dystopian cityscape, ominous lighting, high contrast, dynamic action poses, mid-battle scene, fire and smoke effects, 3/4 view, atmospheric perspective, detailed rubble and debris, hazy background with sparks, cinematic composition.