The gun decorations are actually in front of guns that aren't the invisible gun. Whenever I try to do it, even if the decoration is set to be in front — the gun model always goes first, not the gun decoration.
The custom maps the custom guns are in:
https://www.plazmaburst2.com/index.php?s=9&m=gelaborg-campaign&id=1030386
https://www.plazmaburst2.com/index.php?s=9&a=&m=gelaborg-test10&id=1027615