Border Patrol, Biggs Army Airfield in El Paso, Texas, also serves as the national BORTAC operations and training center. RELATED: In addition to serving as the Special Operations Group (SOG) headquarters for the U.S.BORTAC is also one of the most active and diversified tactical units in the law enforcement profession. The, or BORTAC, was established in 1984, which makes the unit one of the oldest law enforcement tactical teams in the U.S. The selection course is extremely difficult and both physically and mentally demanding on candidates. After candidates pass the screening process, they must attend the four-week BORTAC Selection Course.