I wanted to make javelins less of a flanking damage dealer and more of a skirmisher used to screen the main force.
Giving them armour degradation makes it more viable to throw javelins at the approaching enemy (from the front) before the melee clash begins - which I think creates a more interesting gameplay synergy and plays out a bit more like historical skirmishes

i think javelins and slings should have the role switched javelins were powerful armour piercing weapons famously

This mod was conflicting with Three Kingdoms Unit Shape, which modifies the same tables. Thanks for helping me again, I appreciate it.

Quick note on mod priority: load order only sets priority for art/models, and is also used if one mod depends on another loading first (submods, etc). In this case, renaming the table and putting an ! in front of it caused your mod to take priority, but I'm going to uninstall 3k unit shape since it looks like using both would require me to basically merge the mods into one pack file and I like your mod better. =P

Try placing Adjusted Combat on top of the mod order. This should make sure it does not get overwritten by another one

Removing all mods but this one and skip intros has the trait showing. Once I narrow down the conflicting mod I'll report back in case anyone else runs into the issue. Thanks for checking for me, I should have tested like this before I commented. =P

Libu Warriors should have both armour breaking weapon and the trait, and it shows up when I launch the mod. Are you maybe using any other mods that affect unit stats?

I noticed that Libu Warriors (two handed axe speedsters) don't have the icon for the armor breaker trait, and I was wondering if they are working right, or if maybe the icon just wasn't included.

Ulter has my family so I'm forced to give this a positive rating