Complex sentence: Later, upon leaving Phenac Colosseum, three Snagem grunts find Wes/Rui, who then reveal to Rui that he was a member of Snagem, and apparently, an excellent Snagger.
Split into simpler sentences: Later, upon leaving Phenac Colosseum, three Snagem grunts find Wes and Rui. The grunts then reveal to Rui that he was a member of Snagem, and an excellent Snagger.