The Buried City
Make your way down to the Buried City; it’s a little trek from your starting location. There is a Major Harpy, a Minotaur, and numerous other Vex at the entry way. Defeat them and enter the left corridor where Goblins emerge and the room becomes very dark. You’ll need to defeat the Vex in this dark area but it’s a good thing their eyes glow in the dark.
Freehold Station - Darkness Zone
Move into the lobby and you will see the light of Vex spawning Harpies and more Goblins. There are plenty of enemies to defeat and lots of cover. A nice Grenade or Super Ability can wipe out a lot of them but it may be best saved for the Cyclops ahead. Proceed further down the corridor to Tharsis Junction where you can spot more Vex dropping onto the tracks.
As you navigate through the train cars, find the Vex Transfer Gate in the far right corner. Destroy it from afar then focus on the Vex; you don’t want them to be continually summoned forever. Be careful of the Hobgoblins and Harpies ahead as they also come from a Transfer Gate. In the back you’ll find an open area with three more Transfer Gates. Hit them with Heavy Weapons or Sniper Rifles. Save your Super Ability for the Prohibitive Mind , a Major Minotaur, that comes with a few other Vex. This group will come as you destroy the final Transfer Gate. Have your Ghost investigate the Conflux then return to your Vanguard Mentor at the Tower.