Sentinel Firing Cores, crucial items in Arc Raiders, can be used to upgrade the Gunsmith to level three. These cores are primarily acquired from Arc Sentinels—sniper turrets mounted on ceilings at specific locations.
Primary Spawn Locations
Players should initially focus on three key areas for a higher chance of finding Sentinel Cores. The Research & Development area offers a blue exterior staircase, while both ends of the destroyed dam at Dam Battlegrounds, located between the Control Tower and Power Generation Complex, host potential Sentinel spawns. These areas provide a consistent yet not guaranteed opportunity to secure the cores in a single match. When Sentinels are defeated, their chassis often drop to the floor below.
Additional Maps and Alternatives
Sentinels can also be found on other notable maps. In Buried City, look for them in the yellow bell tower atop Townhall and the Santa Maria Houses courtyard. In Spaceport, Rocket Assembly, Container Storage, and Control Tower A6 are worth checking. In Blue Gate, Sentinels can appear in the concrete area northeast of Checkpoint or on the tower in Pilgrim's Peak. Alternatively, Sentinel Firing Cores may be looted from Arc caches, large containers scattered around maps, including Dam Battlegrounds near Research & Development. These caches might contain parts from various Arc machines, including Sentinels.
Knowing these locations and keeping a deliberate search pattern in mind enhances your chances of gathering Sentinel Cores, thus advancing your Gunsmith effectively.
