fallout4 I want to lower the spawn rate for weapon mods in FO4. How do I this in a simple and safe way?

[kplusa]

How can I edit the spawn/carry rates of various weapon mods so that, for example, only 1 or 2 raiders in a 5 raider gang are carrying the weapon instead of 3-5? Or the odds of it being carried by an NPC or appearing in a container/vendor stock is equal to other weapon mods of the same level?

Lastly, does the approach to changing this depend on whether or not the weapon mod has an LL injection?

This is basically all I want to accomplish since post sections for mods such as the M249 SAW and RPG 7 observe that too many enemy NPCs carry the same weapons even in the same area.

Should I use this Robco template (https://www.nexusmods.com/fallout4/mods/70186)?

PS: I apologize for any confusion caused by my request since a lot of the jargon I've encountered in modding like LL injection is overwhelming and has quite the learning curve.