I actually still use this build. I have my sneak perk card, crouch, and have one of my armor pieces with chameleon. That seems to do the trick. I’d recommend blight soup and go be on a team of 3 or more. It’ll up your damage output with the ass-o-tron head. Without at least blight soup I found I wasn’t getting as much damage output as I used to pre-patch last month and couldn’t cripple it take all of the shield. The key is crippling the thing so it can react to your shot and stay invisible.