With the Krall intensifying their attacks on Verteron Citadel, many soldiers have been wounded and the citadel is running out of defence. Spatalos has ordered you to deliver a letter to Lavirintos, the Guardian Commander in Sanctum, requesting reinforcements. After reading the letter, Lavirintos refused to send the reinforcements, saying that it wouldn't be any use if the Krall's intentions remain unexplored. Xenophon, an expert who Lavirintos recommended, told you that the Krall attack is nothing but a smokescreen and someone must infiltrate their stronghold to find out what they are really plotting.