Complex sentence: How the other gauntlet was acquired by Southpaw has not yet been revealed, nor has how the alien's leg armor came to be possessed by Grasshopper; however, the opposing alien's weapon later found its way into the possession of Armory.
Split into simpler sentences: How the other gauntlet was acquired by Southpaw has not yet been revealed, nor has how the alien's leg armor came to be possessed by Grasshopper. However, the opposing alien's weapon later found its way into the possession of Armory.