Perhaps it’s something to try, but it’s making more work, while is should be simple without needing to add new traits as work around.
When there is child empty objects for projectiles initial position and direction, you need to reference the child object by it’s name, with same name for all duplicate parent objects.
Armory need real prefabs, i don’t know if it will come, but without prefabs and inherited prefabs, it will be really bad about usability compared to many other 3D engines.