Is there anyone who could defeat or even face Captain America without making a fool of themselves? The answer is actually, yes, and that person is Captain America of the Vietnam War!
This scenario is possible thanks to Jason Aaron who wrote this volume. He also set the story in the Ultimate Universe, thus everything is a bit different than what the majority of Captain America fans are accustomed to.
Possible readers should keep in mind that Captain America of the Vietnam War is very different than the (normal) Captain America. This is an aspect that could determine readers not to like the book.
Another thing to remember is that the story is filled with contemporary fears and not only. They relate to political, and philosophical aspects of our daily lives, and not only.