DesertFox Airsoft features the Ranger Fire Team actually led by a former US Army Ranger during the Milsim West Caspian Breakout... "Task Force Mayhem is a U.S. Army Ranger airsoft impression group which models itself after 2010 U.S. Army Ranger gear.
TFM is led by Jim Hansen who was a former U.S. Army Ranger with 3/75.