Design a Gundam figure inspired by Master Chief. The figure should have military-green, armored plating with battle-worn details and a sleek, tactical look. The visor should be gold and angular, similar to Master Chief’s iconic helmet. The figure should be equipped with heavy weaponry, including an energy rifle in one hand and a combat knife attached to the leg. In the background, the box art should display the Gundam in a combat-ready stance, standing amidst a war-torn battlefield, with a dramatic pose holding the rifle. The box should highlight key features like the customizable weapons, reinforced armor, and articulation, with muted military tones and gritty textures. --niji 6