I love my Chinook....but would have really liked to have been a Herc Pilot....and if the USAF had ever opened up a pipeline for Flying Duty only, Rank limited to Major, Hercules Pilots....I would have been there till they physically threw me out the Front Gate.
Um is giving some very good advice....focus upon your Military flying first. Take advantage of the Military Competency method of obtaining your FAA ratings. Decide what you really want to do in the military....be it fighters, transports, helicopters or tilt rotor but be the best you can be. Show your dedication to that task first and foremost.
As you progress in the military....you can then try to steer your assignments in the direction you want to go. Remember the Maintenance Pilot, Safety Officer, and other related assignments that would be of much benefit in later life.
Hit some of the web sites that advertise civvies Aviation jobs....and see where the most and frequent advertisements are located and what background would make you a good fit for them. That way if you decide not to be a career officer and pilot....you have a good start on where you go after the military.
For the time being ....live, eat, breathe the Marine Corps! OOHRAH! Being a Marine will let you into a very strong group of Good Ol' Boys and Girls that will help you all through your life and working career. Marines look out for one another (except for John Murtha) and have a secret handshake system that is to be admired.