The issue starts symbolically with Walker getting dark there in those first panels when he (again) goes too far for Captain America and it's only the beginning. The fight against Left-Winger and Right-Winger is really great, he goes full berserk and the fighting is really imaginative, something you don't see very often in comics these days. John totally loses it there badly, BUT in his defense he does give them a chance, albeit a veeery tiny one and he calls it "mercy". That last page is iconic for Walker, at this point he is no longer Captain America by any means, he is U.S. Agent, who he was always meant to be. Can't wait for the next issue when he clashes with Flag-Smasher, they should be arch-enemies, since Walker is the ultimate nationalist, you could even call him a jingoist, and the other hates nationalism from his guts, he's basically the ultimate globalist.

P.S.: In his defense, John was unbiased, he killed both Left-Winger and Right-Winger and he massacred the Watchdogs even though he agreed with their basic principles, people don't give him enough credit in terms of ideological flexibility. more