Let's discuss alternate names! Serious, not serious, whatever!
Ghost Recon Combat Ops (named after the book!)
Ghost Recon Online Warfare (GROW!)
Ghost Recon Operations (GRO!)
Ghost Recon Declassified (a game based on a game in the Ghost Recon Universe which was modeled with artist license after the classified Ghost Recon unit X3)
5SFG (Self explanatory!)
Ghost Recon Gaiden (trollolo)
Phantom Recon (lololo)