Arbitrations are a special alert variant by the Arbiters of Hexis. In order to access this elite alert, you must complete all nodes connected to the star chart, excluding Jordas Golem & Mutalist Alad V assassination on Eris. There are a few restrictions behind the alert, you must have a rank 30 Warframe, upon dying, you do not enter a bleedout phase; you die instantly and revive tactics are not effective. When a player dies, a revive tower will appear at their own place of death and a waypoint, you need 5 drone shards to revive the player.
Arbitration Drones will spawn among the enemy ranks, they function similarly to Shield Ospreys, but instead will grant complete damage and warframe ability immunity to all connected enemies. Upon death, they explode dealing to 3000 
Blast damage to all nearby enemies.
There is also a given buff for a single weapon and frame randomly selected, which can be viewed on the alert screen. The buff will give said stuff +300% damage/strength (respectively).