Seafort
Made His Bed, Is Now Lying In It
EM1 is absolutely right. There are even BDCP folks that are being paid as E-5. Right now, that's your paygrade, it is not your rank. You don't have one, although if you are fully integrated, then you will probably be referred to as MIDN soandso, although you may be referred to as OC soandso. If the latter, be respectful of the title; it is one that is given to you, but not one earned like the MECEPs and OCs that came from the fleet.