Kosel was a battle experienced Imperial admiral of commoner background who worked in the Ministry of Intelligence. He was responsible for leading the investigation into the intelligence leaks from the Imperial Fleet, and Imperial Vice-Admiral Christopf von Michaelsen was a suspect.
spoilerHe had planned to investigate more deeply using former colleagues and contacts of Michaelsen, such as Christopf von Köfenhiller, upon his return from the Second Battle of Tiamat. However he was killed in battle during the Second Battle of Tiamat at 18:37, 11 December, 745 UC, and Christopf von Köfenhiller was captured, so this plan never proceeded further.
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