Arena of Judgment
From Halopedia, the Halo wiki
The Arena of Judgment is a great hall that was once a Sangheili forum, but has become a battleground between forces belonging to both the Swords of Sanghelios and Jul 'Mdama's Covenant. Statues lie ruined, bodies litter the floor, and tools of war juxtapose the ancient architecture surrounding it.
During a Killer Instinct Match
At the beginning of the match, a firefight will be going on in the background between Elites belonging to both the Swords of Sanghelios and the Covenant. They are shown firing Type-51 carbines and lobbing Type-1 plasma grenade at one another, with some shots landing on the opposing forces. Eventually, forces on both sides will be exhausted and the hall will grow still (save for the fight in the foreground) until the second round.
At the start of the second round, a Type-57 Phantom will crash through the back wall of the forum, creating much rubble revealing a large-scale dogfight in the far distance. Sangheili fighters and warships can be seen firing at one another.
During an Ultra Combo, a Type-47B Scarab will crash through the other part of the back wall, creating further rubble. It will attempt to struggle out of its predicament, but then lose power and grow still.
When a Stage Ultra is triggered, the same scenario as above takes place, except along with the Scarab there will be an Ultra Type-54 Banshee that flies in and crashes atop the fighter who had been defeated using the Stage Ultra. The camera will then pan back to the winner as they pose victoriously.
Arbiter's theme is made by Celldweller & Atlas Plug.