Do you want to compare Sgt. Rock with Firestorm? Discover the powers, weakness & weapons of Sgt. Rock and Firestorm from Sgt. Rock Biography and Firestorm Biography. Find out all about Sgt. Rock and Firestorm.# Check out how is Sgt. Rock unique and distinct from Firestorm. Discover their love interest, sidekicks, family tree and the movies and games list in which Sgt. Rock and Firestorm have appeared. Find out everything about them here!