Fallout – Are bobble heads single use in Fallout 76

From what I understand, F76 loot is random and personal, and it respawns quickly. So if you loot a location, then join another person's group and go to that location again, you're not going to get more loot, because you already looted that location recently. Once that location respawns, you can go back there and loot again. What they mean by "instanced loot" is that every player's loot is specific to themselves.

Source: https://www.vgr.com/fallout-76-feature-instanced-loot/

From gameplay last night:

1. Scrapping weapons gives a chance of unlocking a mod for that specific weapon.
2. You can buy single use mods from vendors (but the range isn't great).
3. You can but plans from vendors that enable you to learn how to craft a mod (but the range isn't great).
4. You can only share mods when they are items in your inventory.

So in short the best way to get mods for a specific weapon is to gather lots of that weapon & scrap them.

As an example our team fought through dozens of Super Mutants around Summersville & New Gad. Many Super Mutants carried hunting rifles & at a rough count every third rifle I scrapped unlocked a mod. By the end I had upgraded my hunting rifle to a basic sniper rifle or sorts.