Firestorm has two different weapons systems that are integrated into his systems, his Flamers, and Shoulder Mounted Missile Launchers.
Firestorm's Shoulder Mounted Missile Launchers are capable of firing a large variety of missiles.

The flame tanks that are stored on Firestorm's back contain highly concentrated amounts of unignited 'liquid flames'. Each flame tank is connected to his wrist mounted Flamers by two flame tubes. These flame tubes can get blocked easily and should be replaced on a regular basis, although they are usually only replaced once the flame tanks on his back have ended up exploding due to blockages.

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Submitted by Steve Perriam