At the end of Mission 8 Ripley asks Marlow to tell her everything that he knows. This will spark a change of POV, and place players in Marlow’s POV.
Following the opening cut scene your objective will be to Scan for the Signal Using the Tracking Device. After walking a few feet this will update to Follow the Signal. Do as your objective says and use your Tracking Device to pin point the location of the beacon’s signal. After several minutes of tracking you’ll come to a strange looking rock formation and your objective will update to Find a Route Around the Blockage.
Look for the rock ledge that hangs just a bit over, approach it and accept a boost from a friendly to get on top. Next you’ll need to head the only way you can, following the path around while looking for two rocks that block your path. At the base you’ll find an option to place an explosive, doing so will allow you to step back and detonate the explosive and let your friends catch up.
Look for a second rock ledge and approach it to have your friend boost you up once more. Follow the path until you reach the end and can see the wreck of the Derelict. This will trigger a cut scene that will actually flip ahead in time.
This part is easy for the most part, simply follow the people in front of you until your objective changes to Enter the Derelict. Just keep following your friends until you are asked to Explore the Derelict.
After reaching the large open area with the large strange thing in the middle, you’ll know what room we’re talking about, and then head across this room, past the formation in the middle and follow the Tracking Device to the tunnel on the other side. You’ll need to have a friend boost you up, but once that’s done just follow the path to the end, your objective will update to Disable the Distress Beacon. Approach the Beacon and interact with it to shut it down. Now turn around and head back to the large room you just left, getting a new objective to Return to the Winch.
Once you’re in the main room again, head to the center of the area and Climb up and circle around to the tripod winch. Interact with it to climb down into the area below and move slightly forward to trigger a cut scene that ends the mission in true Alien fashion.
