Confused about Onuris default layout

[Heartless]

Class 6 guns are Light fighter only, there are also class 6 CODENAME guns ( got downgraded from class 9 ) . some light fighters can equipm missiles to their CD slots too, dunno if that is intentional.
Class 7-8 are Heavy fighter and Very Heavy Fighter guns, you can't mount those to class 6 slots. Heavy fighters can also equip fighter torpedoes and can also have a missile in the CD slit ( at least I could in a Jackdaw ).
Class 9 are CODENAME VHF guns so they only fit on those, nothing else.
Class 10 are for missiles only you're not suppose to find any class 10 guns anymore.

Yes, thank you!

That leaves me with just two more questions if I may.

First, so what's up with the Death's Hand Mk V's that the Onuris comes with? Can't seem to find them anywhere and they don't exist in flstat. Are they just a present for buying that ship? Because why would I get the Mk II versions of that (which are class 6) when I have what is supposedly three versions better?

And second, where do I find class 6 codenames? Of course you don't have to answer this (maybe just a clue ) and I can go out and explore/hunt by myself.

Thank you!

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SwissScorch --> Heartless