- Enter the elevator
- Meet the division leaders
After succussfully using the interceptor to teleport you arrive at the Institute. A voice will direct you on where to go, and you will meet Father who is in charge of the Institute. Speak with him and join the Institute. You may retract this agreement later; in the meantime continue the ruse and explore the location.
Go to Institute Bioscience and speak with Doctor Clayton Holdren, then locate Chief Engineer Allie Filmore in the main concourse. If you access Institute SRB and speak with the acting director Justin Ayo you will find he does not trust you. Speaking with Doctor Madison Li, will gain you a relay installed into your Pip-Boy which will allow you to fast travel to this location.
Once this quest is complete you may now continue your chosen faction quests. The Minutemen holotape may be inserted in a terminal near the teleportation arrival spot. If you are having trouble retracing your steps, simply locate the DNA themed elevator in the center of the facility go to its lowest ground level point. Activate the call button to call the elevator, and then ride it back up to the top. The terminal will be at the end in the room where you teleported in.
Once you have chosen a faction to support, you will begin the Act 3 quests.