1. You cant craft ammo, blueprints (all relics) in general have changed their function from trading them to npcs to unlock new recipes to using them with handicon from inventory to let the "new" fixboy menu pop up and let you craft some random weapon > random weapon crafting.They serve aswell nowadays as Misc trading item for the traders at faction hqs at courtyards whom got, for whatever reason, a shit ton of caps nowadays.
2. Its gone and will never come back, even tho some caravan script for something similar in core is lying on the server repo for decades.
3. You can change the faction whenever u want, its only annyoing if you got many stuff due to potential bugs with hoarder not working on all faction maps maybe.
4. Whole game went to shit, complete new META in every aspect mostly due to bad retouching of things, yeah thingys.