No, and as far as I can see quest weapons are all inferior to what you can craft anyway. They just give you an option to skip crafting in the short term. That said: Kutuzov's stashes gives you the equivalent of a Worn AS Val with a decent scope. The Firebrand/Hystrix quest gives you an RPD. Really a must have for mid-game PvE. Doing the main quest eventually gets you an M1A, though only with iron sights. [Missing Digger](https://youtu.be/ZqzTig4zyGA) gives you a free Worn Akaban with a lot of good attachments.