The plot you are talking about may be a mistake in the translation of domestic subtitle groups. Winters was a lieutenant and platoon leader of Company E before the Battle of Normandy, but he became the actual commander of Company E after arriving in Normandy. In the battle of Market Garden, Winters has been transferred to the battalion as XO, and at this time his rank is captain. After the battle of the bulge, he was awarded the rank of major and was already the acting battalion commander of the 2 nd battalion. After World War II, Winters retired as a major. During the Korean War, he was ordered to return to the army to train new recruits, but he did not participate in the war directly, so he was not promoted again.