This guide covers everything you need to know about ARC Raiders Expedition 5, also known as the Rust Belt Trials, including its September 8–29, 2026 schedule, event mechanics, permanent stash upgrades, the complete Zenith outfit set, exclusive mystery rewards, and capped skill point progression. We also break down the most efficient reward-farming routes, the essential materials to stockpile before the event begins, and practical strategies to help you maximize every limited-time reward before Expeditions pause until 2027. Players preparing for the event can also check out ARC Raiders Items to support their progression and loadout preparation.