Home-made guns would be great for multiplayer, these would NOT be easy to craft and would require a reasonably high carpentry skill, or a high Crafting skill (if they were to add a crafting skill for weapons/items) these home-made weapons would require a sturdy metal pipe, nails, planks/metal pieces (depending on skill you can craft) and they'd require bullets obviously. The guns themselves would be a lot weaker than a legitimate firearm but they'd still be strong, they'd be single shot (you need to reload a bullet after each shot) and have short range, about 5-7 meters for shotguns depending on quality and 7-9 meters for pistol depending on quality. there's a lot of room to improve on my idea but i think it'd be a great thing for multiplayer.