Get the best of both worlds. Be a DACP (Department of the Army Civilian Police). We call them "Blue Suiters". Your fed time counts and you get training that will count towards civilian law enforcement if you decide to go full civilian LEO. When I was at Ft. Hood, all the DACP's got to go to training at FLETC or Quantico. Also, since the regular MP's at most posts are deploying a lot, most of the permanent LE jobs on post are going to the blue suiters (K9, SRT, Investigations, Bike patrol, etc). I would look into that. See what they have at Schofield or Shafter. Might make a good transition.