You would also want to make sure the projectile is not launching from the character but from an arrow facing forward from the character that is at the end of the gun/wep that your using. unless your using the character, then us the arrow on the character.
use a + node on the spawn projectile and then go ahead and use the get forward rotation vector of the character and add to that for the end starting point so the projectile doesnt even touch the character. Generally this can be covered by looking at youtube, they have lots of tutorials.