The loadout doesn't even matter with the Systems Expertise skill. You just need to spam weapons in front of an onslaught with the ship system active.
It is extremeley overpowered even without the ship system.
ehhhhhh I just tried with a level 5 officer with the ship system skill (Elite), Damage control, Field Modulation, Ordnance expertise and helmsmanship.
Armed with rail guns and a sabot pod along with the squall burst and and buster assault. While it could deal a decent amount of damage to it from the front. It still ultimately died
I mean i'll still look into the ship system and see if it needs a nerf but idk how you are killing it so easily. Which is why I asked for your build to account for anything i could possibly missed and to make sure it wasnt because you were pairing it with a broken weapon/hullmod from a different mod