crafting_pieces.xml in Native/ModuleData has the pieces and spitems shows you what pieces the weapons use. Change the properties of the pieces to change the weapons properties.
I'm sorry, but I still don't understand what you mean. Look at this....Below, Which of these Numbers is Damage, which one is swing speed, The numbers DON"T match up in game as they did in warband, so it's not so easy to understand. The numbers are meaningless to me. Are those two different folders that you talk about? Thank you. It was much easier for me to edit things in the old game...
<CraftedItem id="empire_mace_5_t5"
name="{=Kv4zAMIh}Cataphracts Mace"
crafting_template="Mace"
culture="Culture.empire">
<Pieces>
<Piece id="mace_head_7"
Type="Blade"
scale_factor="100" />
<Piece id="mace_handle_5"
Type="Handle"
scale_factor="100" />