Mangler den røde kiste-embla? Wait: "insignia" translates to "insignia" in Danish as "emblemet" or "kisteemblemet"? The phrase "red chest insignia" could be "rød kiste-emblemet" or "rød brystemblem" depending context. Since product description for gaming collectibles, "blue chest insignia" might be "rød kisteemblem" Hmm. Let's choose: "Mangler den røde kiste-emblemet" but we should remove hyphen. Better: "Mangler den røde kisteemblemet". Danish compound: "kisteemblem" yes. So final: "Mangler den røde kisteemblemet"