Rebranding the original Lunar Defense Force missile from 2313, the Ballista offers superior tracking capability allowing target lock at up to 2800 meters. It packs a slightly larger payload than the old Phoenix V, despite much of its internals being dedicated to full and guidance for the increased flight time. The increased need for siege weapons by GTA pilots rushed this missile into full production, even though researchers are continuing their attempts to triple the range of the original Phoenix V.

An electronic countermeasure (ECM) is a device designed to trick or deceive radar, sonar or other detection systems.. It may be used both offensively and defensively to deny targeting information to an enemy. The system may make many separate targets appear to the enemy, or make the real target appear to disappear or move about randomly. Most forces use ECM to protect their craft from attack during stealth or surprise operations. It is frequently coupled with stealth advances so that the ECM systems have an easier job. Offensive ECM often takes the form of jamming while defensive ECM usually comes in the form of blip enhancement or distortion.