The concept is derived from a speech on the goals famously articulated by United States President Franklin D. Quote: A derivative concept from the Four Freedoms and similar to the License to Kill concept. They are also tasked with shutting down all rogue Third Echelon units still in operation. The unit's first and present assignment is the disruption of a planned terrorist action of escalating attacks against US interests known as the Blacklist. It is completely mobile, operating out of a specially designed C-5 Galaxy cargo stealth aircraft named the Paladin. Unlike its predecessor, the unit has no permanent ground base.

Former Third Echelon chief technical advisor Anna Grímsdottír, who previously worked closely with Fisher when he was with Third Echelon, serves as the technical operations manager in this new unit.

The unit's commander is former Third Echelon Splinter Cell Sam Fisher, who was instrumental in foiling an assassination attempt on President Caldwell's orchestrated by Third Echelon director Tom Reed. deep black agency reporting only to the Oval Office.Commissioned by President Patricia Caldwell, the unit is mandated deal with terrorist threats to US interests, as well as having an ongoing mandate to find and eliminate all lingering operations of its corrupt predecessor, Third Echelon. Quote: Fourth Echelon is a recently-formed clandestine special operations and counter-terrorism unit.

Splinter cell blacklist co op