Captain Carter and Captain America had another very important difference: before Steve joined the military, Carter was already an experienced agent and a proper military academy graduate.
But Steve was not. In fact, before he resolved to save Bucky, he had always been a raw recruit who had never even set foot on a battlefield.
Even after he entered the battlefield, the Super Soldier's strength and his superiors' strategic planning allowed him to handle everything with ease. Compared to other veterans, he seemed somewhat... "innocent," having barely experienced the cruelty of war.
Of course, that innocence also had a profound impact on other soldiers from the United States and some people who came later.
Great power combined with an innocent character—this strange combination was instead deeply admired by the soldiers.
Carter was different. She understood the cruelty of war, and with heavy units like the Hydra Stomper supporting her, she was much bolder in her choice of operations.
Her battlefield was not limited to the ground, nor was it limited to small-scale sabotage. The two of them took part in many major battles, including the Normandy Landings, personally helping crush the German Army's air forces.
Even the Hydra Stomper merely shot down aircraft, which was essentially no different from normal aerial combat. But Captain Carter went a little too far. Sometimes, she directly threw pilots out of the cockpit, resulting in an extremely low survival rate for the pilots of planes she had encountered.
The major setbacks on the battlefield also affected the decisions of Hydra's leader at the time, John Schmidt—the Red Skull.
The Führer blamed this defeat on Red Skull's failures regarding the Tesseract and ordered him to go to Berlin immediately to be punished. Red Skull had no choice but to reveal his hand to the Führer