OK, this shotgun is pretty effective.
It's coupled with, on both my Dom CZ loadouts with an Aphelion (improved hip, range, stab, mag size) and a Zenith (stowed reload, headshot, mag size, stab).
The two suits differ only in night vision v. extra ammo cap. The former is for night manoeuvres, the latter for light side pewpew. The other suit mods are shield regen, battery cap and damage resist.
I'm not saying any of the above is the meta - I don't what is and, to be honest, not that bothered - but it's working for me. The last high CZ just now saw me not die once (but it got damn close a few times!) and an 8.8mCR bond payout. Which was nice.
Aaaanyway. As I've said before, I'm a wet lettuce when it comes to combat so I had to get all those upgrades and mods before I coiuld even begin to do this stuff. My skillz have improved but not that much. I suppose one aim would be do go into battle with an un-upgraded Art with no mods, and just a G1, unmodded P-15. Now that would be hard-man
Now then, to break stuff up a bit, I may do the Dav's thng for a bit. Just because nostalgia.