"Locate Ferris" is a mission objective in Sequence 1 / Memory 01: A Spanner in the works
Walkthrough[edit]
Turn to the right and free run up the scaffolding. At the top of it, turn to the left and head over toward the crane using the wooden beam. Free run onto it and then climb up to the top of its arm to the right. This will trigger the next part of the memory.
At the top of the crane arm, follow the prompt to free run down. This leads to the Detection Tutorial. You can attempt to duck out of sight of the thug you land by, but it is generally easier to just eliminate him.
If you head up the stairs to the right, there is a thug that patrols them. Again, you can attempt to slip past him on the left or take cover and wait for him to go by. Otherwise you can just charge him and take him down. Continue forward. You can either stay on the ground or climb onto the crates that are ahead of you on the right.
Head forward and toward the factory in front of you. There is another thug on the ground. You can take him out or just ignore him. When you get over to the factory doors you will find another thug waiting for you. You can either take him on or slip up onto the boxes and assassinate him. Going with the assassination you will need to deal with some of the thugs nearby. It makes for good fight practice.
Head over to the door. To the right of it you will see a glowing chain. Interact with it to raise the nearby door and admit Jacob inside. This will also trigger the Stealth Tutorial. This explains the new stealth system and lets you know how to use the Throwing Knives.
You need to make it through the smelting room. You can attempt to sneak through using cover, assassination and throwing knives. You can also just fight your way straight through.
For stealth, start sneaking and duck behind the first few barrels of coal in front of you. There is a nearby thug. You can easily take cover and throw a knife at him. It takes 2 body hits to kill him or 1 head shot. Also use throwing knives to take out the thug patrolling near the center of the room. You can also use Eagle Vision to see most of the enemies in this room.
Having dealt with those two thugs, move forward and go past at the large hammer press. There is another thug in this part of the room.
Eliminate at him then turn to the right. Head through the archway in front of you then immediately turn to the left and climb up the wall. This will put Jacob on top of an office.
Head across to the far side and drop down to the walkway below. Deal with the nearby thug or just slip by him to get through the door in the left-hand wall.
Turn to the left when you get in the next room and free run across to the walkway. Go around the office and out the door just beyond it.
Just free run from the balcony onto the lamp and to the beam on the far side. Turn to the left, go up the stairs and through the door at the top. Go through the door, turn to the right, head down the hallway. Go through the next door on the left. You have reached the room with Rupert Ferris. It time to move in for the assassination.
