[5] As the TRADOC G-2, McFarland served as the Army's lead for analyzing the characteristics of future military operations and describing the conditions and threats they might contain.
In coordination with Joint Forces Command, other governmental agencies and services, and the private and academic sectors, TRADOC G-2 develops the operational environment (OE), which is the Army's authoritative perspective of the future.
From December 2005 to May 2007, McFarland was assigned by the Army Chief of Staff to support the establishment and expansion of the Joint Improvised Explosive Device Defeat Organization (JIEDDO).
Throughout his active duty career, he served in a wide variety of operational and intelligence-related command and staff positions, both in the United States and overseas.
He retired from active duty as a Colonel after serving for more than 25 years and shortly thereafter was selected for the Defense Intelligence Senior Executive Service in July 2002.