During your playthrough of The Surge 2, you will run into a few side quests you can do. Some of these are easy to complete, and others have hidden objectives.
The Witness Walkthrough
This side quest will begin early on in the game but would go on for a little longer than normal as far as side quests are concerned. You would get materials to upgrade the gear you have, from a guy at the first med station outside the Police Department.
He would disappear for a short period after you have upgraded your gear. He will appear again when you find the EMP Starfish drone.
To get to him, you would have to take this drone back to where you first met him i.e. the healing station outside the PD. You would find him in front of a flaming barrel after you get back to the river.
There is railing on the sides of roads there but one piece is missing and that is the key. You need to drop down from that gap and kill the gentlemen that are down there.
You will be able to open the door that’s down there by using the EMP and behind that door is the Hunter. You will be asked to get him AID gear which needs to crafted by you.
The enemies at security checkpoints have this gear and you’ll have to kill them to get it. Once you have the gear, sell it and he will go away, leaving you with a chest that you can loot.
You will meet him again in the game at the place of finding the Force Hook. He will require a key card to open the locked door he is standing at. The key is with the scientist who protected the force hook.
You need to have a chat with him and then get the key to open the door. All will become clear to you and then you will be asked by Warren to come to his hideout and meet him.
You can meet him after the city goes to hell and defeating the AID Command area boss.
Upon your meeting, you would be asked to for a repeller to escape the city. Then go back to the place where The Warden and you faced off in the jail. Climb the stairs and cross the gap by jumping.
There is a switch there that needs to be flipped, which will kill the guys downstairs getting you the repeller but be careful of the Nano beasts.