How to change weapon damage?

I started a medieval themed DarkRP server recently, and I managed to find really cool melee weapons to use! The only problem is that some of the weapons one-shot anybody. Is there any way I can modify the damage output? Would I have to change some stuff within the actual SWEP pack.

You’d have to edit the code, there probably isn’t an easy way to change it. Not that we’d know since you haven’t provided the link to the pack.

Sorry, there was multiple packs. They were in .gma so I extracted them through Gmad, do you want me to upload the extracted files to a site so you download them?