- Go to the lower area where you will find another Pike to use.
- Mount onto the Pike and it is time to start fighting the Rider.
- Start going through the massive tunnel in front of you.
- From there, fight on through the Raiders and Lurkers.
- This will lead you into the second chamber where you will start fighting the Rider herself.
- Blast her as best you can with the Pike and she will then leave into the next room.
- The Rider will leave the area quickly after that.
- The Rider will leave and a number of Stalkers and a Abomination will appear over the entrance of the next tunnel.
- Gun down a few of them and then use the Booster to through to the next chamber.
- The battle with the Rider will begin in proper in this chamber.
- You will also need to deal with a few Stalkers on Pikes.
- As the battle takes you through the different chambers, more Scorn will appear.
- Kill the Scorn who get in your way or those few on the Pikes.