Opson

"Opson, home of infamous criminals and politicians during the Forerunner's time. One of the last to fall to the Flood."--ONI Terminal
== Description ==
Opson is a remote colony on the Cygnus Arm that was colonized by the Forerunners sometime during 245,000 B.C.E. For 147,505 years, Opson was used mostly as a military training ground and hunting preserve by the Forerunners.
== History ==
=== Early History ===
Opson was originally discovered by Purveyor-of-Sacred-Light and his fleet searching for a missing warship. Within four years of it's full colonization, the planet had a population of six million. It was also home to many conferences held by San'Shyuum and humanity.
=== Human-Forerunner War ===
Opson was used to dock warships during this war. It was also used to hold captured soldiers.
=== Forerunner-Flood War ===
Opson was one of the last worlds to perish to the flood during a failed ambush. Within a few days, it was completely infested. It was cleansed of infection during the array's firing in 97,495 B.C.E