I can give a few tips on how to do Through The Fire And Flames intro.
Inorder to do the intro you need to do hamerons. To do this you need to take one finger from one hand and place it on the green fret button. Then take the other hand place it under the other hand that's holding the green fret button and use that hand to hit the other notes besides the green fret button. You are going to need to tap the fret buttons and DO NOT HOLD ANY BUTTONS for that will break your hammerons and your meter will fall faster than a rock in water! If you happen to mess up on your hammerons then take your elbow and hit the strummer to regain your hammerons. That's all you need to know and I perfer you go to practice and start on slow and work your way up.
Thanks for listening