All USNA Mids are required to take Calc 1, 2 and 3.

Pre-Calc is a remedial course for mids that need it and does NOT count toward graduation. What that means is that you have to overload or go to summer school later because of it. I was placed in pre-calc as a first semester plebe and in succeeding semesters, took Calc 1, 2 and 3. I went to summer school before 1/C year to keep my academic year courses at a reasonable level of 18 to 19 credits.

For a while after my year, USNA required Calc 1 thru 3 plus Differential Equations for all mids, regardless of major but later backed off on the Diff EQs for some of the majors.