Jim hammond is driven somewhat insane by a beam infected with nanites. He overwhelms Namor with flame in a short skirmish, then destroys his ship with the Invaders still inside. Eventually he gains control and sets out to rid himself of the nanites.
Hammond takes Hyperion down with a single blast of radiactive flame(probably still pissed that he killed his buddy Namor...as I am lol), and boasts...all before Thundra rescues The Sqaudron Supreme from Hammond and his Shield forces, transporting them to a different timeline.
Jim Hammond Vs Nighthawk
Short Skirmish. Hammond is hit with and momentarily dispatched by a weapon Nighthawk developed to take hammonds flame power, but it ends up changing it instead. Apparently Jims power is pure radiation now rather than irradiated flame.