I have a question about the movie "Spartan"?

There are guys who've been Green Berets and left the Army to go to the Navy and be SEALs and vice versa so as long as you leave one service you can go to the next and be in another Spec Ops. And MSOT is the only segment of MARSOC which operates within SOCOM. Force Recon isn't apart of SOCOM though they do work for them occasionally. And Delta and DEVGRU are tier 1. SEALs, Rangers, SF, and CCT are tier 2. Some CCT are tier 2 but that's if they they are in the 24th Special Tactics Squadron of the Air Force. That's the kicker part about it also because Force Recon is also tier 2 but not in SOCOM. Alot of the units within SOCOM though do their own Recon.