Arcadia ONI facility

This ONI Base is an ONI airbase in the jungles of planet Arcadia. It is located in close proximity of the Arcadia Forerunner Ruin site. It’s unknown if this is a coincidence, or if the ONI built the base to the area on purpose.

Summary
The base is built onto a plateau overlooking the valley that contains the Forerunner ruins. It consists of five landing platforms, all of which are connected to a large central field. The base has two Reactors powering it. It also has a hangar and several other buildings around it. There are also multiple air control towers around the base.

History
During the First Battle of Arcadia in 2531, the UNSC used the apparently deserted base as their base of operations, when they attacked a Covenant base inside a dome-shaped energy shield. They used an air pad on the base to call in Rhino tanks from in orbit, and placed the tanks on the landing pads on the edge of the cliff. After a few unsuccessful attempts, they managed to destroy the Covenant outposts in the area and breach the energy field. After destroying it, they proceeded down to the valley to investigate the area.