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.