>>532672394
Rashad with Carapace+Flak & Headtaker+Brutal Momentum is what I have on my axe (I never checked breakpoints, so check perks if you want to minmax).
You don't need Street Smarts. I just left it on 'cause I've been too lazy to swap minor shit when I change weapons.
Got me around a million damage in two Aurics yesterday with this.