ChooseSorrow’s Harboras your landing point.
Head toward the southeast exit and cross the red bridge.
Keep going straight ahead through the tunnels to reach the Lunar Battlegrounds.
Once out in the open, turn right and follow the path.
Once you reach the bottom of the stairs, head toward the right where there is a gap.
Jump across the gap.
Head up the slope.
Walk through the narrow path at the top of the hill.
Head straight until you see a dome next to a building with antennae and satellite dishes protruding.
Once you’re in close range, an objective marker will lead you to the right spot.
Scale the building with satellites on it to find the Captive Cord on the third floor.
The entrance is just to the southeast of the Sparrow’s Harbor landing site.
This quest will unlock after you kill enough powerful enemies on the Moon.
It should become available as you complete campaign quests.
Approach the Lectern of Enchantment near Eris and interact with it to get the Arc Logic auto rifle.
you might repeat this quest to get another Arc Logic Rifle using one Phantasmal Core.
You don’t have to track down the Captive Cord again.
