The projectile has several moving lines around it that swirl as it travels, like in this picture. I have the projectile itself down, I just can’t think of how to do the outside lines that travel behind the projectile. How should I go about creating this effect?
Then you could use particles for that? Add some attachments and make the particles emit away from the part. Then you could use the Orientation property of the particles to make them look a bit flat.