Regular Nazi's were better than Vampire Nazi's. At least in Seras' mind they were. At least these soldiers hadn't decided to give up their humanity and tried to live for a thousand years. Both groups had committed genocide, but she hadn't been alive when WWII was going on. She almost had a front row center seat to the second coming of the Third Reich.

She didn't try to kill anyone, she could never bring herself to kill humans, no matter what they're trying to do to her. She was supposed to be protecting humans, not killing them. Her Master had no issues with slaughtering innocents, but that was just the way that he was.

Like him, she easily cleared the wall and headed into the castle. She didn't know who this Captain America was, but she was going to help him out.