Liberty Reprimed

Liberty Reprimed is a quest in Fallout 4

Quick walkthrough

 * 1) Speak to Proctor Ingram
 * 2) Follow Proctor Ingram
 * 3) Speak to Professor Scara
 * 4) Search for Professor Scara
 * 5) OR Speak to Doctor Li
 * 6) Speak to Proctor Ingram
 * 7) Locate a high-powered magnet
 * 8) Construct electomagnetic actuators (4)
 * 9) Speak to Proctor Ingram
 * 10) Speak to Scribe Haylen
 * 11) Locate the bomb storage facility
 * 12) Locate the Mark 28 nuke stockpile
 * 13) Activate the distress pulser
 * 14) Speak to Paladin Danse
 * 15) Return to Proctor Ingram
 * 16) Activate Liberty Prime
 * 17) Speak to Proctor Ingram

Detailed walkthrough
Head to Boston Airport. Ingram’s special project is the reconstruction of a massive war machine. It looks like it needs a lot of work to get up and running. In fact, a fellow scientist is required to help:
 * If you failed to convince Doctor Li to join you (or if you killed her) during Brotherhood of Steel Quest: From Within, Plan A occurs.
 * If you completed Brotherhood of Steel Quest: From Within and convinced Doctor Li to join, Plan B occurs.

Plan A: Finding Professor Scara
Ingram tells you to find Professor Scara. She hands you a cerebrofusion adaptor to help convince her to help.

Ingram has tasked you with finding a robotics expert in Diamond City named Professor Scara and asking for her assistance. At the Science! Center (in Diamond City Market), converse with Doctor Duff. She hasn’t seen her colleague Scara for over a week after she left for a field expedition.

Journey to the General Atomics Galleria, north into the Commonwealth. Enter the Back Alley Bowling building and find Professor Scara inside.

At this point you can convince her using your charm (Easy, Or convince her using your cerebrofusion adaptor.

Plan B: Speaking To Doctor Li
In order to get the war machine’s power systems stabilized, Ingram has asked you to speak to Doctor Li on the Prydwen. Head to the main deck, and after a conversation with you, she seems tentatively convinced.

Back at Boston Airport, Ingram requires the building of electromagnetic actuators. She hands you a build list (Electromagnetic Actuators List). All of the components are stored in Boston Airport's workshop. Well, all of them except one: a high-powered magnet.

You need to recover a high-powered magnet. One of the hospital ruins should have the part that you need. Or, as high-powered magnets can be scrapped, they may be found throughout the Commonwealth, or sold by vendors too.

Head to the location indicated on your Pip-Boy, and beware of local dangers. Find the magnet, usually inside a marked trunk with other items.

Back at the airport’s workshop, access the Special menu. Build four Actuators, using the following components (required for each one, with the exception of the high-powered magnet):

Build with: circuitry, screw, steel x10, fiber optics x3, rubber x5, high-Powered magnet

An Almost Unattainable Arsenal
Inform Ingram of your progress. Naturally, you’re not done yet. You need fully loaded Mark 28 nuclear bomb packs for the war machine’s weapons systems. Meet Scribe Haylen at the new Primary Location Waypoint Echo, on the edge of the Glowing Sea. You’re given a distress pulser to pinpoint the position of the nukes when you find them. Haylen’s team will extricate them.

Head roughly southwest into the Glowing Sea, and enter Sentinel Site Prescott. Beware of radscorpions and other irradiated dangers along the way.

Descend the outer gantry. Locate the terminal at the base of the structure and abort the launch sequence, allowing all blast doors to be opened (via terminals). Open the adjacent blast door. Locate the cylindrical tunnel.

Wind your way through cylindrical and concrete tunnels, through holes, and along waterlogged passages, watching for more ferals. At the warehouse control room, you encounter Brother Henri and Atom's Wrath (an Assaultron). You can kill them, either before or after the conversation. Locate the password on Henri’s corpse and use it to unlock his terminal and open the doors (Henri's Terminal Password). Alternatively you can use charisma and pretend you revere the Children of the Atom cult, and you’re let past without incident. He opens the doors for you (Medium).

The stockpile is now accessible. If Danse is your current companion, speak to him and he agrees to stay and defend the stockpile.

Return to Ingram to inform her of your progress. She’s happy enough with your progress to let you press the power transfer switch and power up the war machine. Afterward, accept an impressive reward.