Below is a guide on where you can find the Spartan Cores in the southeastern region of Zeta Halo which can be used to upgrade your armor in Halo Infinite.
Spartan Core 1
This core is located in the structure made of hexagons north and slightly west of FOB Lima.
Spartan Core 2
This core is located southeast of FOB November near the road leading to the Beacon.
Spartan Core 3
This core is located northeast of FOB November along the map’s edge behind a cliff.
Spartan Core 4
This core is located at the base of the Great Spine.
Spartan Core 5
This core is located in the power generator room at Riven Gate.
Spartan Core 6
This core is located at the bottom of a giant hole in the mountain north of Riven Gate.
Spartan Core 7
This core is located at the top of the very tall mountain east of Riven Gate.
Spartan Core 8
This core is located at the base of the southern Beacon.
Spartan Core 9
This core is located on the northwestern side of Annex Ridge in a supply container.
Spartan Core 10
This core is located west of FOB Juliet in a Forerunner room at the end of a cave.
Spartan Core 11
This core is located on the upper level of the northern Beacon.
Spartan Core 12
This core is located southeast of the northern Beacon in a hexagonal cave.
Spartan Core 13
This core is located in a crashed ship northwest of FOB Juliet.
Spartan Core 14
This core is located in a cave in the mountain near the Fortune Squad map marker.
Spartan Core 15
This core is located next to the southwestern Beacon.
For a guide on the location of all the Spartan Cores, click here!