 As XO on a Patrol Boat she will lead boarding parties onto stinking fishing boats, work closely with senior sailors like the Coxswain and Buffer, and share a cabin with the Navigation Officer, Lieutenant Nikki Caetano, who seems to think she's the CO's favourite daughter and that Kate is her new and wicked stepmother.Upon boarding she found that her new CO is an old flame of hers.Kate is the ship's executive officer (XO), which means she is second in command of HMAS "Hammersley".