I don't know who you're competing with. The Chinese Marine Corps belongs to the navy and mainly carries out amphibious operations, so the clothes are all camouflage on land. For the United States Marine Corps, it does not belong to the navy at all, but belongs to a rapid reaction force. He is a depth charge, fighting overseas in the United States. So their camouflage is biased towards land camouflage. I really don't know why the air force is blue, like workers' clothes, but our air force is not very advanced and needs to be developed.