How to get the unique FIDO K-9000 Cyberdog Gun upgrade blueprint in Fallout: New Vegas
How to get the unique FIDO K-9000 Cyberdog Gun upgrade blueprint in Fallout: New Vegas

FIDO is a unique version of the K-9000 cyberdog gun that can be acquired by crafting it after getting the FIDO blueprint, which can be found in the laboratory X-8 Kennels.

Quick tips before getting the blueprint:

  • Guns skill of 75 or more required. The weapon is a craftable upgrade to the base K-9000 Cyberdog Gun, which requires a Guns skill of 75 or higher to craft.
  • Mods will be lost. If you have a K-9000 Cyberdog Gun with attached weapon mods that you want to craft into FIDO, remember that you will lose all of the attached modifications.
  • K-9000 Cyberdog Gun Required. As it is an upgrade to the standard K-9000, you must acquire it before you are able to craft FIDO. See the guide here to get the K-9000.
  • Upgraded Sonic Emitter required. The key to the Kennels is located behind a force field, which requires the upgraded Sonic Emitter to get past. Completing the “Sonic Emitter Upgrade” main quest will give you the required upgrade.

Acquiring the FIDO Blueprint

While the Kennels are located in the Laboratory X-8, they are actually locked behind an unpickable door, which means that the player must first acquire a key to get inside.

To acquire the key, the player must make their way to the X-13 Research Facility, which is located on the western border of the map.

X-13 Research Facility Location.  | Fallout: New Vegas
X-13 Research Facility Location. 

Once you’re there, head inside the facility and look to your right, you should see a force field-blocked door. 

Force field-blocked door. | Fallout: New Vegas
Force field-blocked door.

Use the upgraded Sonic Emitter to disable the force field and head inside the room.

The key is located in a suitcase in the far right corner of the room.

Suitcase with the key. | Fallout: New Vegas
Suitcase with the key.

Once you have the blueprint, head to the opposite side of the map, where you’ll find the X-8 Research Center.

Location of the X-8 Research Center. | Fallout: New Vegas
Location of the X-8 Research Center.
Door that leads into the facility.  | Fallout: New Vegas
Door that leads into the facility. 

Head inside and look to your right, you’ll see an open door. Head inside and take the stairs down. 

Door to walk through. | Fallout: New Vegas
Door to walk through.
Staircase leading down. | Fallout: New Vegas
Staircase leading down.

Be wary of the Mister Orderly bots that patrol the area. Their DT is high and their weapons are dangerous for the unprepared.  

Once there, head to the large hermetic door on the opposite side of the room and turn left. 

Hermetic door. | Fallout: New Vegas
Hermetic door.

You’ll see a corridor leading to a smaller hermetic door with a “KENNEL” sign next to it on the ceiling. Using Armor-Piercing ammo is highly recommended.

Corridor leading to the Kennel.  | Fallout: New Vegas
Corridor leading to the Kennel.
Kennel door. | Fallout: New Vegas
Kennel door.

Head on through and kill the 3 or so Nightstalkers that await inside. Using Hollow Point ammo is recommended.

Once the Nightstalkers are dead, head to the opposite side of the room and walk up the short metal staircase to your right. 

Staircase leading to the platform. | Fallout: New Vegas
Staircase leading to the platform.

They lead you to an elevated metal platform. There is a terminal on a table there, which has the schematics lying next to it.

Blueprint lying next to the terminal. | Fallout: New Vegas
Blueprint lying next to the terminal.

Crafting FIDO

At this point, all you need to do is head somewhere with a workbench. The Sink just so happens to have one, so head there and craft FIDO.

Fido in the crafting menu.  | Fallout: New Vegas
Fido in the crafting menu. 

Differences between FIDO and the K-9000 Cyberdog gun

One important thing to note beforehand is that FIDO uses .44 Magnum ammunition, unlike the K-9000 Cyberdog Gun, which uses the cheaper and lighter .357 Magnum ammunition.

  1. Deals more damage than both the unupgraded and upgraded K9000 Cyberdog Guns.
WeaponDamage
K-9000 Cyberdog Gun (Upgraded)26
K-9000 Cyberdog Gun (Unupgraded)28
FIDO36
  1. Its fire rate is lower than the upgraded K-9000 Cyberdog Gun, but equal to the unupgraded model.
WeaponFire Rate
K-9000 Cyberdog Gun (Upgraded)9.8 attacks/second
K-9000 Cyberdog Gun (Unupgraded)7 attacks/second
FIDO7 attacks/second
  1. It has a higher spread than both the other K-9000 Cyberdog Gun variants.
WeaponSpread
K-9000 Cyberdog Gun (Upgraded)1.35
K-9000 Cyberdog Gun (Unupgraded)1.35
FIDO1.5
  1. It has a higher Strength requirement than both of the other K-9000 Cyberdog Gun variants.
WeaponStr. Req.
K-9000 Cyberdog Gun (Upgraded)8
K-9000 Cyberdog Gun (Unupgraded)8
FIDO9

Final Summary + Tips

Overall, FIDO is at best a side-grade to the upgraded K-9000 Cyberdog gun. While its raw damage is higher, which allows the user to kill enemies with higher Damage Thresholds, the higher price and lower availability of the ammo diminish this weapon’s early game potential. The increased spread also necessitates the use of the Trigger Discipline trait, which further decreases the DPS of the weapon.

  • The higher spread can be mitigated by using the “Trigger Discipline” trait, but it will come with a fire rate penalty. In this weapon’s case, using this trait is highly recommended, as the spread is actually 50% higher than the upgraded minigun’s spread.
  • The high damage and spread of the weapon almost make it into the heavy-weapon user’s shotgun, being able to dish out high damage in close combat.
  • The 50 round magazine, coupled with the lower fire rate, lasts a good amount of time, meaning that you won’t find yourself reloading too often, even in high-stress situations.