Master Chief in armor, Halo series, crossplay, dynamic pose, holding assault rifle, sci-fi environment, futuristic cityscape background, alien structures, UNSC vehicles, multiplayer action scene, co-op gameplay, split-screen, Xbox and PC symbols, energy shield effects, Cortana AI hologram, space marines, detailed armor texture, metallic finish, visor reflection, intense battle stance, high-tech weaponry, blue and green plasma effects, 3/4 view, dramatic lighting, high-resolution, action-packed, co-operative mission, cross-platform gaming, epic scale, panoramic shot.