>>531073602
Use the Achlys mk VIII twin linked gun. It deploys super fast and it's surprisingly accurate if you fire in bursts.
or...
Use the Ripper Mk V or II, they're great as well.

I recommend using a pickaxe with headtaker and slaughterer, then you don't need the bleed talent for melee. But use whatever you want.
The push talent at the middle bottom is extremely good for self defense.
There are 4 points left to put somewhere.
And yes I do go for the +15% fire rate because it's fun. But you can go with more damage if you're gay.