Sometimes MARSOC FAC tours are about who you know, but for the most part, they have an opening, it's posted on the available FAC tours list you'll get after your first tour, and you submit a package, pretty simple. A phone call to the FAC you're replacing wouldn't hurt either. I went to SERE school late in my first tour...was hoping to get out of it all together...either way I was with a bunch of guys, 2 of them happened to be Force Recon Marines. Both were GySgts and said they'd love to have me as a FAC, and if I ever needed an "in" to give them a call. 3 years out of the cockpit is too long for me but I Thanked them anyways.
Recon FAC tours are about the same to get, just apply, they're out there. "Sometimes" you might get to go to Jump School things depending, but again, you're just a FAC, they have plenty of well-trained Marines to do everything else. If I remember right, PFT score is looked at for Recon FAC spots, probably one of the only jobs that cares about your PFT in the Officer ranks....most just care that it's a 1st class.
The best advice I can give you to fullfill your dream is keep your nose clean....stay away from drugs, don't drink and drive take a cab, in essence don't do something that will make the Marine Corps or any other service question your integrity. College students will be college students, I didn't say don't be crazy and don't have fun and don't chase everything with boobs and a heartbeat, just be smart when you do it. And once you get in the pipeline, concentrate on the task at hand, don't think about what's going on too far down the road or you'll get overwhelmed. Realize that initially all you need to know is you're a Marine that hopes one day to fly. "Marine first, pilot second" is the common phrase. Shortly after TBS you'll have to drop that mantra to the chagrin of all your drill-instructors and acknowledge you need to become a pilot first or you'll never make it through flight school let along get what you want. See the theme? Closest aligator to the boat, tell them what they want to hear, the rest is gravy.
Also, I have heard that the SEALs handpick some aviators for their FACs. Is an opportunity with the SEALs more feasible than with MARSOC?