IW5/ weapon stats

[xHIGH1x]

Hello guys!

I am completely new in COD scripting/modding.
Could someone explain how to edit weapon stats(recoil/damage/range etc.) on my server. I want to make balance patch like https://forum.plutonium.pw/topic/33070/release-mp-beamxrz-s-unofficial-weapon-patch-black-ops-version

What tools i should use?