Im surprised nobody post this yet you lads ought to try this one out. I usually uses the alt but was feeling suicidal today i just solo an AC, an Urbie and a Cicada before hitting the shitter while doing the spotting thing for the Vroom vroom event KFX-S legs JJs are crucier btw. you can choose to use 1 leg or both legs. either one works as long as you have mobility. your armor be paper thin. https://mech.nav-alpha.com/#c11ff426_KFX-PR alt with a little bit more range and a solid 20dmg
I did post 52 Pickup way back as the first ever Purifier build. This looks like a rougher version of that but much hotter.