Not really a question for the author but Anyone ever figure out a way to kind of get this to work with Op Parr. Doom? Honestly I'd just like to figure out how to just make the weapons in that simply use the models for Henry's Doom stuff. Would be so sick lol. If I figure it out I'll follow up.

Following previous comments. I also tried the Sniper Rifle (Matriochka) with the same approach (include the weapon in a Skin Set (Sniper Rifles) and hide them with the Hider Mod (MCM menu). Both weapons appear in the game and in the missions as well.
In order to select them, the Xskin filters must be set with Skin Sets ON, category OFF and Tiers OFF. The other filters do not matter apparently.

For those interested to use this weapon in LWOTC as a skin. You of course need to hide the weapon (using the weapon hide mod from Iridar) and you can then get it using Xskin (but only in a skin set, not in the armoury screen). One needs to create a skin set for shotguns.
This is indeed strange but I got the weapon to appear in the game. I just need to test it in a mission now. I'll provide feedback.
This weapon sure looks good.

could you ever make a tutorial on how you made these mods?

This weapon looks nice. It does not appear as a selectable weapon (but I play LWOTC and maybe that is the reason why it does not appear).
The weapon appears in the Iridar "Hide" MCM Menu. It does however not appear if one tries to use it as a skin for a shotgun (or any other weapon).
The config file only contains damage and range, so it cannot be used to modify the weapon type. There are no tiers apparently.
The ideal use for this weapon would be as a skin. I hope the creator will propose it as a template to be used with Skin replacer.

How odd I've never seen an added weapon not show up to be used for a reskin.

I noticed and was about to post that it doesn't work but you beat me to it.

Damwrongname doesnt work. Both Irdars and Xskin do not work for "operation paralels" slayers guns. Most likely its do to that switch primary weapon mechanic and its drawing only from the pool of vanilla guns.

@IFIDIEITSLAG: You know there is a mod to use the skin of another weapon on any weapon, So after installing that mod you can just reskin the regular weapon to use this skin and Voila you got doom guns with normal damage.

@MadCoala21 no this is separate

are you planing to incorparate them into "Operation paralels"mod slayer?

would love to use this on my slayer

Please make it replace the original weapons because it does 14-16 damage i think and it just ruins the fun...

@Dahaka This is a separate weapon

So is this a replacer or a standalone weapon?

Rip and Tear until it's done. thanks for this one