Fire Support

Fire Support is a quest in Fallout 4.

Quick walkthrough

 * 1) Listen to Military frequency AF95.
 * 2) Proceed to Cambridge police station.
 * 3) Assist the Soldiers.
 * 4) Speak to Paladin Danse.

Detailed walkthrough
While traveling near Lexington and College Square (or just south of the Corvega assembly plant if heading southeast from Concord) you receive a military radio broadcast (AF95). The broadcast details a cry for help from the Brotherhood of Steel stationed at the Cambridge Police Station.

Head towards the location and you will be faced with a hoard of feral ghouls attacking the Brotherhood members stationed there. Assist the soldiers and when the fight ends speak to the commander Paladin Danse and agree to assist him.

You can also persuade Paladin Danse to hire you. If successful you will receive a higher sum of caps at the end of Call to Arms.