The Fireball is an overstable fairway driver with a low glide designed for maximum control, even on windy days. A Fireball is recommended for the slightly more experienced players. New players will find that the disc is very overstable.
In Fission plastic, you get a disc that uses a special technology from MVP and Axiom where air bubbles are inserted into the plastic in the middle of the disc so that more weight can be moved out to the edge of the disc.