If you are looking for weapons that are generally well suited for everyone, stick with Civilian guns.
Maybe 4 Heavy Flashpoints, 2 Imp. Debs, and a torp? Or a Cruise Disruptor? Heck, i think the Raven's Talon has 4 level 10 slots, so you could mount a pair or four Codenames on there, for the added damage. But anyways, your best bet would be more Hullbusters than Shieldbusters.
If you plan on being neutral, just use neutral guns.
The "I stole it" approach does not cut it here. I know, you did work for them and got paid in "tech", but at its core, it is still the "i stole it" excuse.