When the GDI ion cannon, by order of Redmond Boyle, attacked Scrin ships on their approach to Earth, they split into a vast number of these smaller craft. While lacking in speed, Drone Ships seem to be heavily armoured and, being airborne, may move over any terrain to deploy. It should be noted, however, that they are only capable of low-level flight and their progress may be impeded by tall structures or landforms.