Question: What is the name of the American entertainer that was born as Joseph Gottlieb and featured in the film based on the real life U.S. Army Delta Force unit?
Sentence (from "Tom Clancy's Ghost Recon"): In "", it is shown that the Ghost's unit has multiple designations and is part of JSOC and is also known as the Group for Specialized Tactics (or GST—where the term "Ghost" comes from) much like real JSOC units like Delta Force (1st SFOD-D or CAG) and SEAL Team Six (or DEVGRU).
Relevant evidence: No