CombatShotgun reload animation for all shotgun

[Aquamarina]

I just found out an CombatShotgun have some acceptable reloading animation... put each single shell
Can some one make a mod/Edit of this?? or replace the CombatShotgun animation to all shotgun ?
I tried to change value of <WeaponFlags> on Pump but no help

Here is the link of combatshotgun reload