You will be fine buddy, just be honest and use your operational experience to your advantage. What is your rate?CMC is command master chief. He is the 3rd part of what's known as the "command triad". CO, XO, CMC. Cmc is the head of all enlisted personnel in the command. He is rarely involved in the operational aspects of the command such as maintenance and supply ect... That is the maintenance master chief.
Also thanks for the gouge everyone, very nervous about these officer appraisals lol.