The Plasma Blastgun is among the largest Plasma Cannons in existence, usually mounted on the Imperial Guard's Stormblade super-heavy tanks and on the Adeptus Mechanicus Titans. Plasma Blastguns are enormous double-barreled plasma weapons capable of two firing modes: a "full" shot, which discharges both barrels at the same time, and a "rapid" shot, which discharges the barrels independently. A "full" shot is most effective against armoured targeted, and the combined power of both plasma bolts is enough to tear apart any armour with ease. It also produces a large amount of splash damage, making it effective against infantry formations as well. The "rapid" fire mode allows for a larger volume of shots to be fired more quickly, but at a reduction in strength and area effect. Rapid fire is more effective against fast-moving vehicles and large units of infantry, as the cool-down time is lessened considerably.