To Create mod

Sup guys ...

yesterday i saw the thread "how to create mod" i try to do all but i dont understand how to delete lines in dir_list somone can help me if u can upload

vidao on how to create mod i want the alcad m4a1 Texture but i dont know how to do that please somone help me i really want it and i'm unpacking weapon_031 but i dont know what to do pelase help i dont understand how to do it someone upload vidao on how to create mod tHank..

I thought it doesn't work anymore, because then it would say: detect user modified data
So yeah... I don't think it works