Well, until someone mentioned in this thread about making cans of oil, I never knew that it was even possible to craft them... and that's with about 2000 hours in game. That's because I never had an issue looting or salvaging more than sufficient oil for repair kits, so had never even looked to see if there was another way to get it. The only thing difficult about repair kits was sometimes getting the forged iron before you had a forge or wrench.
I do like the idea of using the specific parts for that gun to repair it. Even having put even thousands of rounds through a wide variety of firearms years ago, I can flat out say that when it comes to fixing firearms in a zombie apocalypse, all I'd be doing is swapping parts. Without some kind of training as an armorer and a proper machine shop, good luck doing more. I'd definitely put the firearms crafting locked behind a book/schematic, and really should require appropriate tools for the job, an additional tool slot on the workbench maybe? That would give incentive to go explore to find that too.
I do like the idea of using the specific parts for that gun to repair it. Even having put even thousands of rounds through a wide variety of firearms years ago, I can flat out say that when it comes to fixing firearms in a zombie apocalypse, all I'd be doing is swapping parts. Without some kind of training as an armorer and a proper machine shop, good luck doing more. I'd definitely put the firearms crafting locked behind a book/schematic, and really should require appropriate tools for the job, an additional tool slot on the workbench maybe? That would give incentive to go explore to find that too.