1st Special Forces Operational Detachment-Delta, commonly known as Delta Force, is one of the United States' secretive Tier One counter-terrorism and Special Mission Units.

1st Special Forces Operational Detachment-Delta (Airborne)

Delta was formed after numerous, well-publicized terrorist incidents in the 1970s led the U.S. government to create a counter-terrorist unit.

Delta Force's unconventional nature also allows its members to carry highly-customized weapons. Like any other military unit, Delta has dedicated mission tasks including snipers and squad machine gunners. The flexibility of Delta means that weaponry is quite varied and often depends on the mission at hand or personal preference of the individual operators.

The common weapon of choices may be the M4 carbine, the H&K MP5SD, and MP7A1.

Delta Force's primary tasks are counter-terrorism, direct action, and national intervention operations, although it is an extremely versatile group capable of assuming many covert missions, including, but not limited to, rescuing hostages and raids.