To all the HardCore Agents

Mad respect to you all. I'm just hitting Warlords at SHD11. I want to go after Keener, but this voice in my head keeps saying "Don't Die MothaFucker" What were some tips that kept you alive?

I have a few blueprints I can use but currently. I'm running a 4pc core and a 2pc Palisades Steelworks