It occurs to me that most suspects interrogated by NCIS, CID, OSI, CGIS, have never seen the "rights' form they have you sign. So if you've not seen it in advance, it's harder to know what it is and how to complete it.
Here is an example, and it is pretty uniform across the Services although the example is Army.
Read it now, see where the check marks are, and exercise those rights.
Download Form3881