[gaijin]

“Extra tough Marine” — ok

“Extra elite Marine” — ok

“Special Forces Marine” — ?????

[Grampa Dave]

United States Marine Corps Force Reconnaissance - Wikipedia
https://en.wikipedia.org/wiki/United_States_Marine_Corps_Force_Reconnaissance

Force Reconnaissance (FORECON) is one of the United States Marine Corps’ special operations capable forces (SOC) that provides essential elements of military intelligence to the command element of the Marine Air-Ground Task Force (MAGTF), by supporting their task force commanders, and their subordinate operating units ...

[\/\/ayne]

“Special Forces Marine” — ?????

That's “Force Reconnaissance" commonly referred to as Force Recon. A friend of mine was in them and I always thought he was saying "Forest Recon." Later I read up on this highly skilled Special Forces Operations capable unit.

The Clint Eastwood movie Heartbreak Ridge was about a Force Recon unit.