It DOES matter what you put down in your preferences. If the program isn't available then they look at the next choice. They won't offer you your third choice just because the Navy needs those designators, IF you are qualified for your first or second choice. Supply was open as of last week. Your recruiter knows what is open and not. If he doesn't he can and should find out. If you are processing an app, then you have a recruiter to ask. This forum isn't the best place to get that information since it can change within weeks and depends which years goals you are talking about. This site is great for lots of gouge, but stuff like program openings and competitive profiles/scores/gpas change vary to fequently. Good Luck