Some questions about crafting/c.a.m.p./loot

Hi!​I am currently at level 21 and I have a few questions about higher level gameplay and a few things that still confuse me.​1.) Do recipes scale all the way to 50? When I build a pipe rifle, I can select the level of the weapon (1/5/10/20 so far). It is the same with other weapons or armor like Leather Armor (1/5/10/20). Certain weapons scale in odd ways (f.e. a 10mm at 1/5/15). Do all recipes scale all the way up to 50 or do some recipes max out before that?​2) Sometimes npc weapons (not crafted ones) of the same level will have different durability bars (not current durability but max durability). Is max durabilty determined by rng or maybe by the weapon's modifications?​3) Will hostile npcs attack walls, crafting stations and the c.a.m.p. itself, or will they only attack generators and turrets?​4) Is there a fixed vendor or location for barn walls or the nuka cola posters? Or is it just rng from the workshop events and other random loot?​ via /r/fo76 https://ift.tt/2PEVUjo