Need Help with a custom Sprite
 

Hello! I have a doubt with custom sprites for weapons. I'm using NST plugins to add new weapons for the game instead of replace them but when I try to add the new custom sprites for the weapon I can't make the select weapon to work. I know that if you replace the original txt (weapon and weapon_s) it works but I lose the sprite of one weapon. The question is how can I conserve the two weapons sprites. Apparently the game doesn't recognize the new weapons.txt located in sprites so it doesn't appear in the game. I have the same problem with the ammo of the weapon.

Here an image of the problem: https://imgur.com/8xm27gS

Thanks in advance.