Total guru "?", movement equation

just download my project and look at the missile code. I need to find out the equation make it so that the fire that is attached in the mc moves as if it didn’t inherit the missile’s coordinates(i.e make it so the fire moves like it was outside the missile’s mc, and doesn’t move with it) I know it has something to do with the circular rotation code found in the tutorials but i just need someone to write out the code. thx in advance:puzzled: