Guardian Drone

s are alien robots encountered on board Mothership Zeta.

About
Guardian Drones are a more advanced variant of the Support Drone which carries a Drone Cannon and does a considerable amount of damage. If you obtain the Drone Control Device, they can be used as followers with a maximum of one at a time. Just like robots in the Capital Wasteland, they can be deactivated once the player acquires the Robotics Expert perk.

You can shoot their hover platforms to temporarily disable their movement.

Guardian Drones can have their cannon shot off, and they are able to re-equip it.

Appearances
s appear in the Mothership Zeta Fallout 3 add-on.

Also a notable amount of them can be found in the robot facility/factory inside the lower part of the space ship. Besides in the Robotics Facility,

Guardian Drones are not very common until after the space walk.

Bugs

 * s occasionaly have their cannons backwards or a double version yet still fire forward.
 * Pulse Grenades and Pulse Mines do not effect these robots besides the pitiful normal damage (Although they seem to effect them the same on the Xbox 360 GOTY edition - Confirmed).