User blog comment:A Wikia Contributor 9337/Assault build explanation/@comment-26512782-20151128031933/@comment-26261967-20151128050210

Mobile: I had a tanky Assault Build, 20 BAE. I re-spec'd to a AD 25, CS 25, KS 25 Glass Cannon Build and in my experience it really is the best possible Build for the Assault in terms of the numbers it puts up. A good Biosynthesizing weapon is really the x-factor that makes it defensively viable. That plus the Movement and Armor percentages that I quoted above and it's hard to top. Can't really say there's no point to that.

Plus Defense is easier achieved through high-grade Armor for Elite characters/Final Builds. What little extra you'll get on the Skills side isn't much compared to the amount of DPS you'll be sacrificing to get it.