I read up on some things but there isn't much info out there on them. The only thing I was able to dig up was a Maritime Safety and Security Team. And Port Security..
The CG is no longer allowed to participate in bud/s, it was just stopped last month. In actuality only 3 Coasties ever went to the training. They belong to the SEALS for 3 years I believe, then they will be able to return to CG service. But that option is no longer a viable one, the program has been cut.
MSST is a billet not a rating. Port Security is a reserve option. BM's are just as trained for a situation as an ME. A GM is just as trained as an SK. The CG is a different set up than any of the other services. You will find there are many benefits in the CG that aren't available to the other services. Such as NOT having to pick your rate prior to going to boot camp. What if there is a rate you have no clue about?? You pick something that you read about, a 2 sentence paragraph on the gocoastguard website. It turns out you hate that job and only wish you could have chosen this other job. But you knew nothing about it. Well that's what happens in the Army or the AF or the Navy... but in the CG you are a non-rate. You get to see the rates, speak to people, shadow petty officers, decide for YOURSELF what you might like to do. Not what school a recruiter can get you into the soonest. Think how much happier you can be deciding for yourself!!! :) Speak to a Coastie, you will find most are happier and stay longer on active duty than most other branches of the military.
Retention is at an all time high. Recruiting is at an all time high. That isn't a coincidence. There is a reason! The CG is smaller than the NYPD. They can afford to be very picky. Yes, their boot camp is in NJ, it is also the 2nd hardest boot camp in the military to the Marines. I have met Marines that are prior service and have joined the CG when their commitment was up with the Corps and they have said the CG boot camp is more intense and in some respects harder than Marine boot camp. The CG is a tough service. I wish you the best of luck. They are some of the finest people I know.