When you begin the final mission of the game, your objective will be to Escape Sevastopol, then shortly after it will update to Initiate the Docking Procedure. Use your Motion Tracker to locate a terminal that will only work if you Restore Power, then dive into a crawl space by removing the vent cover on the floor to your right. Once inside, follow the wires until you reach a panel, choosing the option to Reboot System. Backtrack out of the crawl space and emerge through the floor, then use your Security Access Tuner on the console that previously needed power.
Your objective will now be to Activate the Guidance Systems, although you may have to bring up your map of the area to see that. You may also get an update about Initiating the Docking Procedure. Either way, use your Motion Tracker to guide you to your next objective, once again approaching a console and using your Security Access Tuner when prompted.
Your objective will definitely switch after that, and your next task is to Engage the Docking Clamp. Follow your Motion Tracker to a Sevastolink terminal, browsing to the Utility folder and selecting the Initialize Docking Clamp command.
Your next task will be to Extend the Personnel Umbilical. Use your trusty Motion Tracker to get you started in the right direction, then go up four flights of stairs to the control room. This will trigger a short conversation with the Torrens, and yet another objective update, this one requiring you to Extend the Maintenance Rig.
The good news is you don't have to go anywhere, just access the Sevastolink terminal and head to the Utility folder, this time executing the command to Extend Maintenance Rig. When that's done, your objective will be to Get to the Airlock.
