@Pags thats what I am thinking - I submitted my request for my Estimated Earnings During Military Service to DFAS - will see what that comes back with. So assuming I stay in Federal Service until age 64, and I'm 56 now, that would give me 8 years military plus 8 years CIV. I was hired at a higher step level too so I need to see what credit I get for that. At a minimum that's 16 years though and easily qualify. Its interesting. I don't quite understand the nuances yet. I'll be curious to see what the buy back amount is: $4-5K?
So different things get you different credits...I'll caveat this and say I don't work for OPM, HR, nor am I a supervisor. But I've read the OPM webpage a few times and gone through this for myself, Mrs. Pags, and some other vets.
-DD214: If you haven't already, turn this guy over to HR and every year you were ACDU will count towards your leave accrual. So, as a guy with 8yrs ACDU you should automatically have your leave service computation date programmed back to 2012. That will give you leave (and only leave) credit for those 8yrs which will put you in the middle leave tier earning 6hrs LA/pay period. This should be automatic and is pretty much part of the ACDU fine print. If HR says no ask to speak to someone else.
-industry credit: if you've worked in similar industries you can use your resume to get credit for additional leave. Not sure if you can do this on top of a DD214. Also, this generally needs to be done as part of negotiations so this ship may have sailed for you.
-ACDU buyback: those 8yrs aren't doing squat for you now. Might as well buy them back and add them to your total pension %. In this case it would add 8% to your annual annuity that you get when you retire and until you die. Can't think of a good reason why you wouldn't pay what may be the price of a mid range car to get this money forever. You can either pay a lump sum or you can pay as much/little as you want per pay period down to a minimum of $25/pay period.
Remember that the federal retirement is designed to function as a three part system: FERS annuity+TPS+social security. Social security is kind of a static # and FERS annuity is only increased by years served, ACDU buy back and high three pay grade. However, your agency probably has generous TSP matching. In addition if you have other 401k funds and you think TSP will perform better you can roll them over into TSP.
Also, look at FEGLI. Its very affordable to get a lot of coverage. Onboarding is one of the few times in life you have to set it to the max but you can always dial it back. I set it to the max and forget it (it's pretty affordable).
Health insurance. Tons of options for whatever coverage you want. I believe there's a way to keep it into retirement but I don't know the specifics of this.
Ask around your agency about how CR/govt shutdown may affect you. Depending on how you're funded it may result in unpaid furloughs. Good to know ahead of time if there's an annual chance for a furlough. If you know it's coming you can gird yourself appropriately.