I’m having a much better time now I’ve unlocked some of the lower tree and moving to more melee focused stuff.
I still find adrenaline frenzy a bit weird. Like, you have no control over when it happens then just lasts 10 seconds and disappears then have to stack again. Bit of a weird keystone.
Take Sample Collector. Use Mk2 alternate (bonus points for proccing hotshot). Shoot through chaff-horde. Get stupidly fast Cartel Special CDR. Take Stimm Supply+Practiced Deployment to basically always have it ready.