Thanks. That helps quite a lot. I'll ditch the haywires, possibly for horrorfexes. Do we still have to forgo shooting one of our weapons to use it? If so, how does that work with weapon destroyed results?
If a Ravager can fire 3 plasma cannons and force a rather difficult pinning test, that'd make a pretty strong argument for the old vehicles. Ultimately, the question of whether it's defensive or not isn't a huge deal -- you're going to have to fire 2/3 of your Disintegrators in Sustained Mode, anyway. It's really more important to know whether the horrorfex's weird wording is still in effect.
I suppose the defensive classification would matter for Raiders, but I don't think it matters much. Vehicles are immune to pinning tests and the Raiders usually carried Dark Lances, not Disintegrators.