Intro:

This is a general use build for use against all factions.
I've used this up to around level 150 grineer and it destroys them.

The idea behind this build is to proc as many status effects as possible then take full advantage of the gundition overload effect of [Galvanized Aptitude].

This build will still provide a decent number of slash procs though your primary source of damage will be raw, on hit damage rather than DoT effects.

Magnetic prog to add another status for galvanized aptitude to proc off taking us from 320% bonus damage to 400%.

Vital sense is replaced by Primary Frostbite
Primary Merciless/Deadhead is replaced by galvanized aptitude with 5 status effects to proc on

Mods:

Flux Overdrive - Gives us ridiculous status chance which is high enough to very quickly and consistently apply all the status effects on the weapon

Galvanized Aptitude - gives a total of 400% damage increase and even more status chance

Galvanized Chamber - Yay multishot

Shred - For this weapon to be truly viable it needs punch through. Only being able to hit 1 enemy/corpse at a time is boring and not realistic for a general use weapon.

Stormbringer + Infected Clip - Corrosive damage to reduce enemy armor, increase damage and give another status to proc Galvanized Aptitude

Cryo Rounds - More damage, more status to proc [Galvanized Aptitude] and Primary Frostbite. Also slows enemies down making for easy head shots and surprisingly effective crowd control.

Galvanized Scope - Cold status + punch through = easy headshots = lots of crit chance (aim towards the head but dont worry about it too much, the stacks will come naturally when you need them)

Vigilante Supplies - More ammo/more damage

Primary Frostbite - Provides critical damage and multishot to offer a bit of up front damage and to replace vital sense which frees up a mod slot.

Notes:

If the very first thing you need to kill in a mission/after death is a level 150 eximus heavy gunner then you can make use of void strike from the madurai operator tree to get you started. After a single kill, this will start to snowball very quickly.

Works well as a condition overload primer as well.

Run a frame and pet which can do extra status procs like electricity/viral/heat for extra damage but you really don't need it for 99% of content.