In Arc Raiders, Sentinels are massive ARC turrets that patrol key areas and drop Sentinel Firing Cores, which are crucial for upgrading your Gunsmith workstation to level 3. These mechanical enemies are heavily armed, with long-range attacks and explosive weak points, making them risky but rewarding targets ARC Raiders Coins.
Dam Battlegrounds is the most reliable spot for Sentinels. The Research & Administration Building is a prime location, with Sentinels often appearing near the south staircase, overlooking loot caches. Approach from cover along the blue stairs and hit the weak point before the turret locks on. Additional spawns can appear on the east and west sides of The Breach among scaffolding ruins. If no Sentinels spawn, reload the map, as they respawn every few runs. You can mix solo stealth with squad suppression to handle both the Sentinels and other players.
Buried City's industrial zones are good alternatives. Look for Sentinels on the Town Hall rooftop under the small arch where a bell may hang, which spawns roughly once every ten raids. Cores often fall to the ground upon destruction, so watch for patrolling enemies while picking them up. Nearby hospital and research buildings occasionally have guards, so be careful. Night raids tend to increase spawn rates, and rooftops provide elevated sightlines for safer engagements.
Acerra Spaceport offers high-reward but high-risk Sentinel spawns around launch towers, hangars, and gantries. These Sentinels guard valuable ARC loot and control rooms, often requiring explosives to take down. Expect heavy competition from other players, so equip Safe Pockets augments to secure drops even if your run goes wrong. While spawns are less frequent than in Dam, the rewards are worth the effort.
Blue Gate has rarer Sentinel placements above the central checkpoint and northern lookout towers by the antenna. Spawns here are infrequent, so treat them as bonus targets, and combine with Arc Courier Husks for extra cores while completing extractions or quests.
Arc Courier Husks, damaged ARC wrecks, also drop cores randomly across maps like Dam Battlegrounds and Blue Gate, as well as on Town Hall rooftops in Buried City or Pilgrims Peak summits at night. These passive loot sources avoid turret fights, making them perfect for low-risk grinding. Always pick them up while moving between main spawns, as they can carry extra rewards without attracting PvP attention.
The most efficient farming route cycles through Dam's admin building first, then husks, and finally Buried City rooftops. Extract and reload to catch respawns, potentially netting four cores in under an hour solo. Common mistakes include over-focusing on other loot or ignoring player alerts ARC Raiders Boosting cheap. Mastering Sentinel farming is essential for progression, providing the cores needed to strengthen your arsenal against the ARC threat.
