Commando Comic #4442 'Hyperfire!' (2011)
 
When the might of the German Blitzkrieg overwhelmed Poland at the beginning of World War II, Sergeant Adem Kozcki of the Polish Army found himself on the run with a survivor from the staff of a destroyed weapons development facility.
 
They had reason to run, for a ruthless SS weapons expert was on their tails and would not stop until he found them.
 
Why? Because he was after two highly-experimental machine guns rescued from the facility - one of which had a devastating firing rate of 500 rounds per second.
 
This wasn't rapid fire. This was HYPERFIRE!