Looking back on this thread, the original reason I asked the question was because I had Marine Officer mentors that did FAC tours running around in the dirt and being a prior-enlisted Marine, I am not opposed to that.
Since joining the helo community, I spoke to a dissociated sea tour detailer who was a cat-other at the FRS and said that ANGLICO and NSW support are definitely on the table if there are spots, however it's very much needs of the Navy and they'd rather slot you in a boat job just so they have the numbers. We'll see how those numbers adjust with the new tour length policy.