Paragon (Earth-5875)

Paragon was the only settlement on the human Outer colony Fehl Prime, housing all of the planet's colonists. 100 metres away from it lied a massive UNSC military base.

History
Paragon was built two years after the discovery and founding of Fehl Prime, in 2312, being established in an arid region.

Siege of Fehl Prime
In October 2555, Fehl Prime was invaded by a group of mercenaries from the Covenant splinter faction known as the Banished, led by the jiralhanae Archuk and "Brood". The local UNSC Marines dispatched numerous squads of ODSTs to aid the ill-prepared colonists, but the superior firepower and strength of the Banished saw the death of most Marines and civilians. A unit led by Lance Corporal James Vega was the only one to prevail against the Banished's forces, reducing the only survivor of the mercenaries to Brood, who was taken prisoner and later interrogated by local Office of Naval Intelligence officials. After their performance and bravery during the siege, the Marines were chosen to become candidates for the SPARTAN-IV Program, and one year later they were reassigned to guard the colony as Fireteam Delta.

Battle of Fehl Prime
For the next nine years, Paragon was rebuilt and the UNSC invested in recruiting many of the colonists to serve in the Colonial Militia. After a signal was detected in the outskirts of the planet, leading Fireteam Delta to investigate its source. When they arrived in the spot, a forerunner Reaper appeared in the colony, easily dispatching its few orbital defenses and incapacitating the colonists with Sentinels and taking them aboard. Bent on saving the colonists, Fireteam Delta sought to stop the Reaper from leaving Fehl Prime by firing the colony's mass driver, but the plan was a failure because of the Reaper's energy shields, and the mass driver was taken out by its fire. The SPARTAN-IVs then retreated to the underground ONI laboratories, where they discovered numerous studies and research being conducted on forerunner technology and an antidote for the paralyzing agent used by the Reapers. With the help of Brood, who remained captive by ONI ever since 2555, the SPARTANs devised a counterattack in the hopes of freeing the captured civilians and Marines to administering the antidote. As the Reaper prepared to leave the planet's orbit, it destroyed the remains of Paragon and its surroundings with its powerful proton cannon.