The expedition window for ARC Raiders The Fourth Expedition officially opens on July 7. Once it begins, you will have approximately six weeks to complete its five stages. Each stage requires you to gather four different types of materials-sounds simple enough, right?
Think again. Not only are the required materials difficult to locate, but the quantities needed are substantial, and the difficulty ramps up with each stage. The fifth stage, in particular, turns into a grueling battle of attrition regarding the expenditure of ARC Raiders Coins.
Read on to explore the specific requirements and strategies for all five stages of The Fourth Expedition.

Phase 1
This is the most fundamental stage of the expedition. You need to collect 150 Metal Parts, 100 Chemicals, 80 ARC Alloy, and 15 Canisters.
1. Metal Parts
Metal Parts are among the most common materials in ARC Raiders and drop in almost every area. You can have Scrappy pick them up for you while you are out scavenging.
2. Chemicals
Prioritize searching Mechanical and Medical zones for Chemicals, as these areas offer higher drop rates.
3. ARC Alloy
ARC Alloy is the only material that must be obtained by fighting ARC units. Every ARC drops ARC Alloy upon destruction, with larger ARC units yielding greater quantities.
4. Canisters
Canisters are much rarer; the most reliable way to obtain them is by trading Assorted Seeds with Celeste.
Phase 2
This is a core stage of the expedition, requiring 30 Durable Cloth, 25 Oil, 20 Electrical Components, and 3 Industrial Chargers.
1. Durable Cloth
Prioritize scavenging in Medical and Commercial zones. Hospital in Buried City is arguably one of the best spawn points for medical supplies on the entire map. Alternatively, you can craft it at a Level 1 Refiner workbench, though this requires additional materials.
2. Oil
Currently, the primary method of acquisition is scavenging in Mechanical zones. Oil is classified as Mechanical loot and is concentrated in areas marked with a gear icon on the map-such as Water Treatment Control and Primary Facility at Dam Battlegrounds, or Parking Garage in Buried City.
3. Electrical Components
Electrical Components can only be crafted at Refinery Workstation; ensure you have the necessary crafting materials ready.
4. Industrial Charger
Industrial Chargers are primarily found in areas designated with the Industrial tag, such as Water Treatment area in Dam Battlegrounds.
Phase 3
Phase 3 forms the core of The Fourth Expedition and requires you to collect: 20x Arc Motion Core, 15x Speaker Component, 5x Turbine Compressor, and 2x Exodus Modules.
1. Arc Motion Core
There are four main ways to obtain these in ARC Raiders: farming ARC Surveyor units, scavenging ARC wreckage, defeating bosses, or crafting one ARC Motion Core using six ARC Alloys.
2. Speaker Component
The most reliable source is scavenging from office computers; Space Travel building in Buried City is a prime location. You can also obtain them by salvaging Headphones.
3. Turbine Compressor
The only way to obtain this is by defeating Turbine ARC. However, Turbine only appears 15 minutes into a match and possesses extremely high aerial defenses. It is recommended to bring ARC Raiders Items capable of breaking armor, such as Hullcracker or Bettina.
4. Exodus Modules
Look for areas on the map marked Exodus; these locations offer a higher probability of finding this item.
Phase 4
Phase 4 focuses primarily on complete equipment items, requiring: 1x Portable TV, 5x Advanced Electrical Components, 2x Sirena Dorata Ship Model, and 3x Vaporizer Regulator.
1. Portable TV
These can be scavenged from various locations on the map, such as Cultural Archives in Stella Montis, Grandioso Apartments and Santa Maria Homes in Buried City, and Pale Apartments in Dam Battlegrounds.
2. Advanced Electrical Components
You can scavenge these in areas marked with a lightning bolt icon, such as Pilgrim's Peak, Power Generation Complex, and Fuel Control. Alternatively, defeating Queen offers a chance for Advanced Electrical Components to drop.
3. Sirena Dorata Ship Model
The primary method for obtaining this is by scavenging in Riven Tides map under Beachcombing conditions; prioritize searching Hotel Panorama Azzurro POI.
4. Vaporizer Regulator
The only way to acquire Vaporizer Regulator is by defeating Vaporizer-a formidable flying ARC enemy-on Riven Tides map under Close Scrutiny conditions. It is highly recommended to carry a high-level Secure Pocket to store the regulator, preventing it from being stolen.
Phase 5
Phase 5 marks the conclusion of ARC Raiders: The Fourth Expedition and is the most challenging stage of all. It requires you to sell Combat Items worth 200,000 Coins, Survival Items worth 100,000 Coins, Provisions worth 150,000 Coins, and Materials worth 300,000 Coins.
Tackle these in the following order: Materials, Combat Items, Provisions, and finally Survival Items. Since this phase relies purely on accumulating value, starting early will make the process much easier.
In summary, completing these five phases demands a significant investment of time and effort; materials are scattered across various map zones, and the process involves combat against ARC forces.
You must also remain vigilant against ambushes by other players. With the help of this guide, we hope you can meet all the requirements for The Fourth Expedition within the allotted time and claim your rewards.


