A Fusion Cascade is an experimental variant of a Tau Fusion Blaster designed for use as a weapon system on the XV9 Hazard Battlesuit. A Fusion Cascade is a form of Melta Weapon making use of a potent nuclear fusion reaction that sacrifices strength for rate of fire, with each burst unleashed by the weapon consisting of multiple shots. This means that despite each charge being less powerful than an equivalent Imperial Melta Weapon of similar size, the Fusion Cascade can overwhelm its target through sheer weight of fire and is still able to reduce even the most heavily armoured vehicles or fortifications to slag in the blink of an eye.
- Imperial Armour Apocalypse II, pg. 58
- Rogue Trader: Tau Character Guide (RPG), pg. 38