Take the Elevator to Solomons Galleria is your first objective of this mission. After successfully trapping the Xenomorph in a disconnected part of the station your biggest threat now is the ruthless Walking Joes patrolling the abandoned hallways of the station. Exit the room and use the Cutting Torch to remove the panel in the center of the door and open it. Head straight until you see an opening on your left and follow this hallway to a right turn a short distance ahead. You’ll know you’re on the right track when you descend a set of stairs and find a nice shiny new Shotgun laying on the lap of a dead body. Grab the shotgun and the Keycard on the corpse and make your way through this room to the locked door at the far end. Use your Keycard to open it.
Pass through the doorway and into the Spaceflight Terminal. Head through the giant door from Mission 2 and hop on the elevator marked Solomons Galleria.
Once you reach your destination head left, turning once more to your left when you reach a corridor. Follow until you reach the metal shutters and receive a new objective, Restore Power to Galleria Security Shutters. From the metal gate look down and to your right at a dog-sized cleaning robot. Activate it and follow into its dock to find access to a ventilation shaft. You’ll emerge from the vent in a room with an EMP V. 2 blueprint on the table. From here turn right and head up the steps, using the lever at the top to open the door. Head forward and turn left, following the corridor to another door with a lever. Loot the area beyond and remove the floor cover to access the maintenance shaft. Follow the shaft in the only available direction, emerging in a room with a 2000-KJVS Generator. Activate the generator to restore power and pass through the room’s only door. This should update your objective back to Return to the Marshal Bureau.
Get your guns ready as the next room is full of Androids. Two headshots with the shotgun should take down the Joes, but you’ll want to make sure your aim is precise, otherwise you’ll waste more precious buckshot. Once you’ve cleared the immediate area head towards the bright lights and turn left, following this corridor until you run into a lone gunman. Take the goon out and search his body for ammo.
Now head down the ramp where the gunman tried to ambush you and turn right, heading towards a large door and through this door to the other side. Turn right once more and grab the nearby map before moving forward and taking your first left. The large metal gate should rise up automatically, but you should be ready to fight a Synthetic as soon as the door clears your eye level. Once he is down turn to the right and head up the stairs.
After a short radio transmission your objective will update to Find an Alternate Route as your previous path is now blocked. Head back down the stairs and all the way back to where you picked up the most recent map. If you head left you’ll be back at the ramp, but you’ll actually need to move straight and up the nearby stairs. You’ll know you’re headed in the right direction when you run into a second ambush.
With your attacker down head up the second flight of stairs and through the large metal door. The gate you need to head through is immediately left, but make sure to snag the map from the right side of the corridor first. Once you’re through the door move forward a few feet and through the next metal gate to find a save game terminal.
From the game save station head to your left and into a room with a Sevastopol Terminal. Look at it if you’re curious, then exit through the unmarked door and make your way through another door with a lever.
Take the Android out ahead and turn right, taking the first door on your left to descend two flights of stairs. At the bottom enter the corridor and feel free to explore before entering the vent on the far left side and emerging from the stairwell.
Follow the vent through to the end, passing into the next room before taking a right and moving forward. You’ll eventually meet up with Ricardo in an area full of corpses. Make sure to search them as well as the surrounding area as the two characters exchange conversation. Your objective will now update to Find Samuels in Seegson Synthetics and short after to Take Transit to the SCIMED Tower. Exit the area through a door on the right of where Ricardo is sitting and walk down the steps to the automatic door on your right. Follow the steps through a corridor to find a lone patrolling Synthertic. Take the Joe down before continuing through the large metal gate on your left and through another gate on your left as well. This should put you standing at a large set of steps with a Synthetic nearby. Take him out like you did the last and ascend the stairs before moving left. Before long you should see an opening on your right to the Towerlink Transit system.
Move into the area and press forward to the stairs down to Towerlink 03. Watch out for a nearby synthetic and call the transit marked Destination SCIMED Tower. This will update your final objective for this mission to Get to Sevastopol SCI/MED Tower and bring your current mission to an end.