Does anybody know about the CRS?
If so, how do you get into it and how does it look career wise for a SWO?
I was in its predecessor (RIVRON) before it merged with MSRON.
Now each AD CRS is a hybrid of both. 3 companies do harbor security and escort vessels pulling in and out of port overseas. One does the Riverine mission, which nowadays is mostly partnership exercises in SE Asia or somewhere down in SOUTHCOM (eg Colombia).
Getting in mostly relies on your knocking out your Engineering qual during your Division Officer tours. If you do it during your 1st tour, you can actually go CRS for your 2nd tour. If you do it during your 2nd tour, you can do it in lieu of your shore tour. Well actually, if you don't get it at all, I guess you could still do it for a shore tour, but not getting that qual isn't a good idea if you're thinking career at all.
Career wise, if you do it as a JO, nobody really cares, but if there were other things you might want to do during that window of opportunity, realize you can't go back and do those later.
Some do it during/around Department Head tours...now that isn't considered a good career move.