Below is a guide on where you can find the Spartan Cores in the central region of Zeta Halo which can be used to upgrade your armor in Halo Infinite. You’ll come here during the Pelican Down mission.
Spartan Core 1
This core is located in the north central part of the area on a raised section of the broken ship.
Spartan Core 2
This core is located in the building north of the northern Gun Battery.
Spartan Core 3
This core is located in the ridge southwest of the northern Gun Battery.
Spartan Core 4
This core is located in a tunnel under the eastern Gun Battery.
Spartan Core 5
This core is located in the southwestern corner of the area near the elevator.
For a guide on all the Spartan Core locations, click here!