Arbiter is a front-line perk with a reliable ability that can greatly weaken groups of enemies or kill them. Arbiter's perk ability can also serve as an improvised mobility tool. Pressing F will ready a shotshell cannon from your left wrist which detonates from a short distance from the player stunning and dealing 45 area damage to enemies. Augmentation Knuckleboom takes 10 seconds to fully replenish and does not require ammunition. Traits: Dependable, Fearless, Lone Wolf.