I'm with Scythe, I think the thing to do absent any specific directive would be to train them using the methods you know, don't train them for a specific course of fire, train them to be the best shooters you have time and resources for, and they will benefit greatly from that.
I know the Air Force only carries rifles for a single week in their version of Basic, I'm guessing the Navy is something like that?
You could also try to get in touch with the Virginia State Marksmanship Team, here in Maine any military member, be it Guard, an Active Duty Servicemember stationed here, or an Active Duty Servicemember who is originally from Maine can participate in the practices, and if they are good enough they can be picked up to shoot competitively with the team.
It's a fantastic program that the team puts a lot of effort into, and if they were to participate in that they would grow by leaps and bounds.