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Secure {MSiloLocation} and prep for launch.

Mission: Countdown Alpha, Mission: Countdown Bravo, and Mission: Countdown Charlie are repeatable main quests in Fallout 76 that trigger the launching of an intercontinental ballistic missile to a map location selected by the player character.

Quick walkthrough[edit | edit source]

Repeatable quest: Mission: Countdown
Enter the missile silo at ether Site Alpha, Site Bravo or Site Charlie.
Make a biometric ID card to bypass the security grids.
Fight through the missile silo to reach the control room.
End the lockdown by repairing the reactor.
Replace the mainframe cores (15 total).
Prepare the launch and defend the security chiefs while doing so.
Input the launch code and choose a target to complete the quest.
Reward: 50 XP
Completed. Leads to Scorched Earth
Death from Above!

Detailed walkthrough[edit | edit source]

Before starting this quest, the player character will need to acquire at least one nuclear keycard and the decrypted weekly launch code for a silo bunker.

Upon entering a silo bunker (either Site Alpha, Site Bravo, or Site Charlie), be prepared for many robot enemies, mainly Protectrons, assaultrons, and Mister Gutsy robots of the Lieutenant, Major, and Colonel rank. Bring energy-resistant gear and energy weapons, along with ballistic-resistant gear against the Mister Gutsy that use the armor-piercing double tap ballistic weapons. A highly radioactive room will also be within the silo.

The first part of the quest will require the player character to find a way past the first set of laser grids, by means of forging a biometric ID card. Old biometric ID cards can be found through the door to the left after first stepping out of the elevator. The majority of the silo will be filled with laser turrets and robots, but with a Level 3 hacking skill, and using terminals scattered throughout, the robots and turrets can be programmed to shut down or by removing targeting restrictions, made to turn on one another. The robots that can be deactivated include the robobrains serving as the area commanders, such as the Residence Assistant and Launch Commander robobrains.

In the next room are two terminals that the player character must read to acquire information on security protocols, giving instructions for creating new biometric ID cards. After acquiring an old biometric ID Card, the player should locate an ID card eraser and follow the instructions on the terminal. Afterwards, following the mission markers will take player characters to biometric scanners which they will enter. Then, a nearby terminal will fabricate the new card. Activating the card will deactivate the first laser grid.

Through the deactivated laser grid and the silo corridors is the Power House and another terminal to handle the robots and turrets. Here, the player character should locate a terminal with instructions in the room with the nuclear reactor. Using the terminal will shut down the reactor for 3 minutes and allow the player character to repair sections of piping around the room. These repairs do not require any materials to complete. Prepare to deal with radiation from the reactor, as well as a variety of robots that will periodically spawn. Once the reactor restarts, the quest will proceed to the next stage.

In the next stage of the quest, the player will follow quest markers to the control room, where they will need to destroy dozens of mainframe cores. Destroying the cores in one room will deactivate nearby laser grids and grant access to more cores and laser grids. There are more terminals with aforementioned robot and turret controls, but the player character should be prepared to fight higher level robots such as assaultron dominators and Major/Colonel Gutsy. After destroying all cores, follow the markers to the next area.

The following stage of the quest involves crafting 15 replacement mainframe cores or finding intact ones around the room. Repairs can be made at a nearby tinker's workbench with circuitry and steel. Replacing all 15 cores and using the terminal to open a security door will take the player to the launch silo and the final part of the quest.

Inside the launch silo is a nuclear missile. Past this, through a door and up a few flights of stairs is the control room. The player character will be prompted to initiate launch prep. Doing so will spawn friendly launch control robots which must be protected as they carry out their corresponding tasks. Each Crew Chief is a Protectron with various robot parts attached to the torso and head, such as the head of a Mister Handy or Gutsy for the Launch Control Chief, sentry bot upper body for another of the Crew Chiefs, assaultron head for the Chief Telemetry Officer, and so on. This process tends to be rather tedious, with the robots being slow moving and the enemies numerous, especially assaultrons, robobrains, and Mister Gutsies with their head lasers, melee strikes, Tesla weapons, smokescreens, and armor-piercing ballistic weapons. Successfully defending the Crew Chiefs will complete the quest. If any robots are destroyed, use the nearby robot fabricators to create new ones to replace them. As long as one is intact, launch prep will continue, but at a slower pace until at least two are working the prep work again, and be paused completely if all the Crew Chiefs are destroyed until one is rebuilt. Once launch prep is complete, any remaining security robots that were still active and trying to stop the preparations will be immediately killed off since the silo is now armed and ready to fire.

Once the quest is completed, the player character will be prompted to select a blast zone target location within Appalachia for the nuclear missile. Some lower-level areas located in the western portion of Appalachia are considered to be within a "protected zone" and cannot be targeted. If fissure site Prime is targeted, the scorchbeast queen will be spawned and the Scorched Earth quest will begin. Targeting other locations will spawn higher level versions of whatever enemy is normally present in that area.

Quest stages[edit | edit source]

StageStatusDescriptionLog Entry
? Head for the Control RoomI should explore {MSiloLocation} and make my way to its Control Room.
? Find a way past the Laser GridsJust inside {MSiloLocation}, a laser grid blocks the way forward. I need to find a way to bypass the security system.
? Find a way to make a Biometric ID CardJust inside {MSiloLocation}, a laser grid blocks the way forward. In order to pass, I need to create and register a Biometric ID Card with the security system.
? Find an old Biometric ID Card
? Erase the old Biometric ID Card
? Acquire your Biometric Data
? Scanning...
? Create your Biometric ID Card
? Register your Biometric ID Card
? Find a way to end the Reactor Security Lockdown
? (Optional) Find a way to repair the Reactor{MSiloLocation}'s reactors have broken down, flooding the Reactor Area with radiation and triggering a security lockdown. I need to find a way to end the lockdown.
? (Optional) Shut down the Reactor for repairs
? (Optional) Repair the Reactor Pipes
? (Optional) Restart the Reactor
? Destroy the Mainframe Cores{MSiloLocation}'s Operations Mainframe has locked down the Operations Center. In order to break through, I need to destroy the mainframe.
? Find a way to open the Security DoorThe door leading out of {MSiloLocation}'s Storage Area is sealed. I need to find a way to open it.
? Replace the Mainframe Cores (X/15)The Facilities Mainframe in {MSiloLocation}'s Storage Area has broken down. I need to repair or find replacements for its damaged Mainframe Cores in order to restart it.
? (Optional) Find spare Mainframe Cores
? (Optional) Repair damaged Mainframe Cores
? Open the Security DoorI've repaired the Facilities Mainframe in {MSiloLocation}'s Storage Area. I should be able to use it to open the nearby door.
? Initiate Launch PrepI've entered {MSiloLocation}'s Control Room. In order to begin the launch sequence, I need to initiate Launch Prep.
? Complete Launch PrepI've entered {MSiloLocation}'s Control Room and begun Launch Prep. I need to defend the Launch Crew Chiefs until they can complete the process.
? Defend the Section Chiefs (1/1)
? Defend the Section Chiefs (X/5)
? (As necessary) Replace the Section Chiefs
?Quest finishedI explored {MSiloLocation}.

Notes[edit | edit source]

  • The quest is automatically started upon taking the elevator down in any of the three silo sites.
  • Progress on this quest is removed upon leaving the server.
  • Repairing the 15 damaged mainframe cores will require 2 circuitry and 3 steel each, for a total of 30 circuitry and 45 steel.
  • After Fallout 76 patch, the Missile Silo quest rewards are only obtainable once per day.

Gallery[edit | edit source]

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