Game mode: All
Type of issue: Misc
Server type: All
Region: EU (UK)
The ItemStatModification table allows you to adjust almost every equipment value without editing the ItemTable, which also allows you to edit the stats of DLC gear. While we can adjust weapon damage and armour resistance, we can’t adjust armour piercing values. The stat ID is simply missing.
Refer to the list here: https://conanexiles.gamepedia.com/Player_Stat_Enum_IDs
As you can see, there is no armour piercing stat ID, which is a necessity for adjusting the stats of weapons.