Setsuko-Arasaka "Nova" One-Shot Photon Cannon

This is a man-pack, one shot variant of the powered-armor "Photon" cannon by Arasaka. Using a standard ACPA power pack tied to a stripped down laser assembly, this 30kg monster is designed for sniper actions against unarmored vehicles and property. Once it is fired, it is burned out and unusable.

Though it's hideously expensive, finicky in the field, and fragile, there are advantages to this weapon: It has practically no signature (only the "crack" of displaced air), and it's really, really accurate.