Reach Cassius' lab is an objective in Borderlands 2 (Borderlands2).

Reach Cassius' lab is an objective in the Story Mission, The Cost of Progress in Borderlands 2: Commander Lilith and the Fight For Sanctuary


  • Once inside the mine, it is time to start making your way on through toward the lab.
  • Getting inside the Mt Scarab Research Center, head forward to the South to start.
  • Make your way upwards along the path here.
  • Once through the gate above the entrance, head to the North and through the far doorway.
  • Go through this hallway and into the next large chamber with the Dahl sign above it.
  • This will bring you into Garrison Omega, where you will be dealing with more New Pandora soldiers: New Pandora Medics, New Pandora Scout, New Pandora Heavy, New Pandora Infectologist, and New Pandora Pyro.
  • From there, head to the Northwest to swing around the fenced central area to the East.
  • Continue around the large vines at the end of the area, fighting through the New Pandora in the area.
  • There is a hole in the floor that you will want to drop through.
  • This will bring you into Test Candidate Detention.
  • To continue, you will need to Vent the gas out of the room.
  • After that, turn to the West and go through the door that opens.
  • Drop off the ledge and turn to the North, to see the open doorway beyond more New Pandoran Soldiers: Medic, New Pandora Commander.
  • There can be the odd Infected Sprout, and Goliath.
  • Start going up the slope beyond the the Containment chamber you were in.
  • Fight through the Tendrils that appear, and possibly Loot Nest.
  • From there, continue in the wide circle around the outside of this area to get into reach the top part.
  • Reaching the area with the large glass windows you are almost there.
  • Head over to the East through the doorway.
  • Once again, you will need to Vent the Gas.
  • With the door open, head into the next large room to deal with more Infected and New Pandora soldiers.
  • Getting through the soldiers and infected, head to the back Western portion to find the corridor forward.
  • This leads to another section overgrown with vines.
  • Continue through, dealing with the Infected Flowers and New Pandora Recruit.
  • Follow the path East and then turn to the North.
  • Going up the Ramp will lead you to the Observation Deck.
  • Go past the vending machines and head up the stairs in the back to reach the top portion of the area.
  • Head to the East and turn to the Right, taking the nearby ramp up.
  • Go over to the right once again and drop through the hole in the floor.
  • From there, turn to the South and wait for the shutter door to open.