Check back later when they've settled on. There is currently no rational explanation, or simple way of explaining, damage 2.0 according to Update 11.3.x. Info in next spoiler is outdated according to 11.3.2/11.3.3 update. (btw, TL:DR, pics at the bottom to tell you how to build your weapons, if you don't care about the mechanics).
So start from scratch, forget the old damage/enemy/weapon system, and realize everything is going to be okay. Scott/Grineeer tried to explain it in the livestreams, and DERebecca tried to explain more in the forum, but the great majority of people who logged into U11 were completely confused. It is completely different and you're just going to confuse yourself trying to somehow translate new mechanics into the old stuff. Do NOT compare the new damage system to old damage system.Okay, first and most important thing to realize: