Removing unit abilities with a movie pack

[RonaldAniban]

I made a mod by myself that aims to have realistic arrows and bullets by terms of accuracy and stuff...
I also made a different projectile for the ashigaru archers with less accuracy. And now my problem is that when ashigaru archers use flaming arrows, they use the default projectile (arrows_flaming) which has better accuracy than their new projectile.

How do I remove their flaming arrows ability without having to edit the patch file? Movie packs overwrite patch packs right? The problem is, units_to_units_abilities_junctions is a list of abilities. It may have duplicate units with different abilities.

For example (this is just an example and it's not accurate with the exact names):

inf_missile_matchlock_samurai - rank_fire
inf_missile_matchlock_samurai - rapid_volley


So, if I add a new "units_to_units_abilities_junctions_tables" to my movie pack mod, and delete the rows with ashigaru archers and flaming_arrows, it will not overwrite the original file because it is a list.

Can someone please help me with this?

Edit: Another solution is to create another ability that uses a new flaming_arrow projectile with a different name (example: arrow_flaming_ashigaru). I did many experiments about it, but it didn't work. Can someone also help me with creating a new ability with a new projectile?

Sorry for my english.