He takes a lightsaber to help in his escape.
He finds himself in a hidden part of a museum that contains a hoard of Jedi belongings. And in fact has the same resistance grade as he himself was given 'resistance on primary phase.' On his escape he discovers that Lusankya is actually an Imperial SSD hidden on Coroscant. Whilst also discovering that Tycho was never an Imperial agent. He is determined to escape and with the help of other Rebel prisoners he eventually manages to do so.
Meanwhile we discover that Corran Horn is actually alive and being held prisoner by the head of Imperial intelligence Ysanne Issard in Lusankya. Now that the New Republic have taken the diseased planet Coroscant they must deal with the fact that Tycho Celchu has been arrested for the murder of Corran Horn and is on trial defended by Nawara Ven. Excellent addition to the story of Rogue Squadron