Will the experience working as a deployed 42A assist me in the civilian sector working for feds?

My take on it as a retired lifer Coast Guard military Human Resources/Admin Specialist (Yeoman):
A military Human Resources Specialist (in whatever branch of Service or wherever in the world that they are deployed/stationed) is not the same as a Human Resources Specialist for civilian employees either in the private sector or working for a government agency. Pretty much the only similarities that carry over are dealing with and servicing customers/employees and trying to meet their needs and your employer's needs. Items such as the various applicable laws, rules, pay systems, insurance systems, vacation entitlement, promotions, how sick time is handled, retirement, and so forth and so on are not the same as the military. The main thing that carries over from military to civilian is the "people" skills.

Becoming a Fed is not just a snap of the fingers. There is an meme se amount of competition out there. Of course Admin
Background shows a fundamental understanding of personnel systems. The feds is in and of its own. Having been hired and t subsequently hiring hundreds in the years I spent after my military time, many Vets are picked up not because the ofbthe additional 5 or 10 points they revive, it is because they have met all ofbthe standards and competed head to head with all others, Vets, Feds, civilian hires, etc.

Another approach is to seek an internship throuhh which direct hires can be mad provided the Vet employs themselves in a nanner thank makes them a desireable employee.

It will help, it will not carry the water you have to do the rest. Seek out sone training while still in service. PMP professional is but one example. Another great Fed Option is Law Enforcement. Here it is mostly about fitness, physical and mental. The Admin shows the ability to process paperwork and be organized with documents and write effectively.

Outside of specialized jobs, Techs, Lawyers, logisticians etc. Law Enforcemnt has a hiring process that gaurantees promotion each of the first few years. This is usually from GS 5 through to 12, gaffer that ist about completion. Their pension is also a greater percentage than most other Feds. Just go on line and google Federal Law Enforcemnt pay scale. They also recieve a form of locality pay who is inclusive of the regiment pension unlike the military.

Having said all that and working with a Federal arm of Law Enforcemnt, for me the military is still the all around best option as the Federal world will be there at 20.

Good luck.

The common thing I keep hearing is that civilian HR has different certifications. Making SGT will definitely give you supervisor experience. Working overseas can be a plus for sure but I don't know just how much your future employers may value it. My suggestion is to pursue education that matches the jobs you will apply to. That way you cover your bases and give yourself the best chance of landing a high paying job.