These 4 Marines killed so many Germans, the Nazis thought they were an entire allied battalion: https://www.youtube.com/watch?v=XUKfR3aHPic (around 2:47 minutes long).
On Aug. 1, 1944, less than two months after D-Day, Marine Maj. Peter J. Ortiz, five other Marines, and an Army Air Corps officer parachuted into France to assist a few hundred French resistance fighters known as the Maquis in their fight against the Germans. Ortiz had already worked and trained with the Maquis in occupied France from Jan. to May 1944.
One Marine’s parachute, that of Sgt. Charles Perry, failed to open. At such low altitudes, using a reserve wasn’t an option, and Perry was killed when he hit the drop zone. Another Marine was injured too badly to continue. The four Marines able to perform the mission were Ortiz, Sgt. Jack Risler, Sgt. Fred Brunner, and Bodnar who was also a sergeant at the time.