You will find him by the tent, near the campfire.
Talk to the Carja Magistrate
Go to the inn in Chainscrape and talk to the Carja Magistrate.
You will find him sitting at a table near the cook.
Investigate the Smoking Tunnel
After eliminating the machines, go to the next part of the room.
Examine the Note
Examine the note lying on one of the barrels and leave the mine.
Return to Javad the Willing
Go back to Chainscrape and talk to Javad.
The rest of the side quest will remain blocked until you completeThe Embassy, the 4th main quest.
Head to the designated area west of Barren Light.
Wait for him to go away and knock over a tree, then quickly hide in the tall grass.
Once the rebel is gone, use the tree to get inside the camp.
Use long-range weapons so as not to alarm the rest of the camp.
After that, quickly deal with the Charger he was mounting.
Throw a rock towards the campfire to lure the woman there and perform a stealth kill on her.
Then approach the man slowly and kill him.
Jump up to the handhold and stand on the column.
From here, it’s possible for you to easily shoot down all the machines in the pens.
Using the Sharphot Bow, you will kill the Charger with 2 shots.
Aim for its horns and the container on its back.
The last rebel is located at the east end of the camp.
Climb the ladder, wait for the woman to stand by the railing and perform a stealth kill.
Investigate the Cave
Lower the bridge using the wheel.

Finally, explore the cave.
Return to the Chainscrape and inform Javad about what you discovered.
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