This is MASSIVLY better than THeMooN85's build...... Like it's not even close. Go build this, and The M00n's build and then go spawn a level 190 Nox in the sim and see the difference for yourself.

This build will kill it in about 6 seconds, while his takes about 11 sec with my [Mesa] build. Almost twice as long.

The reason for this is Heat can stack 100s of times with a snowballing effect to its damage since it can be stacked much faster than it falls off, and viral doubles its effectiveness. His build while having a higher fire rate (which also shrinks your aiming ring much faster) is Just relying on corrosive which hit its wall very quickly at 10 stacks offering 70% armor reduction....Heat also offers 50% armor reduction after a 1 second delay.

I might also add this build works amazing on the majority of secondaries, though sometimes a [Primed Fulmination] build might be a better way to go or a Hemo build for slash.

:UPDATE:
If you prefer to stay in Peacekeeper mode longer use this build, if you prefer in and out of Peacekeeper mode or against weaker enemies use this alternative build:
https://overframe.gg/build/331371/regulators-prime/equal-ttk-higher-kps-faster-aim-ring-depletion-alternative/

Who doesn't love options after all?
All testing is done with my [Mesa] build without any other synergies, buffs, pets, or whatever.