How can you not like plasma weapons? Now I really know you're a foul xenos undeserving of existence in the Emperor's galaxy. Plasma weapons are one of the Emperor's greatest gifts to mankind. They're burny like fire and melty like meltas, only much, much hotter than fire, hot enough to melt through Terminator armor. Yeah, that's right, your Broadsides can't take an armor save against plasma weapons. A plasma gun is also Strength 7, letting it land penetrating hits against anything short of a Leman Russ, and plasma cannons are Strength 8, allowing them to damage AV14 vehicles. Did I mention plasma cannons have a blast template allowing them to share the Emperor's bright glory with multiple models at once? And the Leman Russ Executioner can fire three Strength 8 AP2 Blast shots per round, plus whatever sponson weapons it has, probably a plasma cannon each side, for a grand total of 5 Strength 8 AP2 Blast shots per round. That's killier than a Hammerhead that's equipped with an Ion Cannon. Suck it xenos scum!