With the enemy tanks abreast of his position, Second Lieutenant Murphy climbed on the burning tank destroyer, which was in danger of blowing up at any moment, and employed its .50 caliber machinegun against the enemy. He was alone and exposed to German fire from three sides, but his deadly fire killed dozens of Germans and caused their infantry attack to waver. The enemy tanks, losing infantry support, began to fall back.
For an hour the Germans tried every available weapon to eliminate Second Lieutenant Murphy, but he continued to hold his position and wiped out a squad which was trying to creep up unnoticed on his right flank. Germans reached as close as ten yards, only to be mowed down by his fire. He received a leg wound, but ignored it and continued the single-handed fight until his ammunition was exhausted.
He then made his way to his company, refused medical attention, and organized the company in a counterattack which forced the Germans to withdraw. His directing of artillery fire wiped out many of the enemy; he killed or wounded about 50.