The Virai Dronescourge arm their weapon drones with the destructive Mag Cannon!
The Virai are sometimes forced to build weapon drones for purely militaristic purposes, though even here they try to ensure the drones can be used in a non-military role.
Their weapon drones appear to be heavily modified and expanded warrior drones equipped with thrusters and a weapon mount, sometimes with the appendages retained. They are equipped with a flamer array which resembles little more than a number of fusion flamers bolted together into a single weapon.
The Swarm!
Sam Phillips