On the 24th October 1945, the United Nations (UN), a coalition of 51 states was made to maintain peace after the Second World War. Eventually they grew to hold a total of 193 states. The UN became an official recognized organization promoting peace. However, by doing peacekeeping, many terrorist organizations continue to plague their efforts. The regulars of the UN, the Blue Berets, numbering over 110,000, are headed by the Department of Peacekeeping Operations (DPKO). This, in turn reports to and is under the command of the United Nations Security Council (UNSC).

These men and women however, unlike other armies in the world, run on donations. They are described as a 'pull' force. For example, the NATO is a 'push' force, in which the NATO are deployed with their resources given to them.

To counter this problem, The UNSC decided to create a new branch of the army in the year 2002. This branch was kept a secret from all non-UNSC personnel. The United Nations Special Combat Operations (UNSCO). The UNSCO consisted of 3 regular Blue Beret Generals, 5 Command Special Combat Operators, 500 Elite Regulars and over 5,000 Special Combat Operators. These Operators are extremely skilled in all phases of combat, from Marksmanship to Espionage. They are deployed to the harshest and most unforgiving places on the planet, to carry out the most unthinkable and inhumane operations ever thought of. Due to them being a separate army, the UNSCO decided to use the Reverse Tier system as rank instead of the usual ranks, although that stayed for formalities. Age was also not a concern as one could join at any age, youngest recorded at 12.

The Reverse Tier system is as follows;

Tier 9 – Non-armed Civilians.

Tier 8 – Armed Civilians/Partisan Fighters

Tier 7 – Non-Armed Forces, Local Police Forces

Tier 6 – Identification, Designation of non-UN personnel.

Tier 5 – Mostly just for identification, designation for Regular Blue Berets.

Tier 4 – Most UNSCO units, Elite Blue Berets who have completed the 'Winged Dagger' course.

Tier 3 – UNSCO units who have been in service for over 5 years and/or have passively participated in Operations deemed condemned by the DPKO, e.g. Operation Eight Sword Rondo, Operation Ascension.

Tier 2 – UNSCO units who have been in service for over 10 years and/or have actively participated in Operations deemed condemned by the DPKO.

Tier 1 – UNSCO units who have been in ACTIVE service for over 5 years AND have actively participated in Operations deemed condemned by the DPKO.

Tier 0 – Reserved Tier for the top 5 Operator in the UNSCO. Only applicable if the Operator has been in ACTIVE service for over 5 years AND has actively participated AND HAS SUCCESSFULLY COMPLETED Operations deemed condemned by the DPKO. E.g. Operation Sand Witch, Operation Cake is a Lie, Operation Black Stag.

In 2022, Operation Dynamo took place in the waters of Baker Island. The UNSCO forces were sent out the moment the USMC called a retreat. It was the largest operation that the UNSCO ever participated in. High hopes were placed on that mission as it was the day that the UNSCO was supposed to go public. That was instantly dashed as soon as they set foot on the island as a bomb detonated. A tactical nuke, as one would call it, was set off by the remaining terrorists in the area, their final act of defiance. Taking over 70% of the UNSCO forces with them, the UNSCO was forced back into secrecy, attempting to rebuild what they once had. On that very same year, the then youngest Tier 1 Operator made history by becoming the youngest Tier 0 Operator at age 17.