Just because Walter is a horrible person doesn't mean he's the antagonist. He is the protagonist because he is the main character. The main character does not always have to be the good guy.
The concept of the protagonist being "the good guy" is EXTREMELY overdone. So overdone in fact that people are now under the impression that antagonist is synonymous with being bad and protagonist with good. I like a good protagonist to be sure, but the lead of a story being nothing but a shining pillar of justice is unrealistic and uninteresting at this point. I don't think I've ever met someone that I can say is 100% good or evil. Human beings are gray, not black or white. The people that are black and white (Jesus or Hitler for two opposite examples) have become notorious for their uniqueness. And yes, I understand that fiction isn't meant to be completely accurate to reality, but a lot of the time creators seem to try to pass this type of one sided behavior as normal, when it really isn't. That's why The Last Of Us 1 & 2 and Breaking Bad are my two favorite fictional stories of all time. They make the characters feel human. I appreciate that SO much.
i thought "the above's hitman" meant the hitman that killed gus so i said hector...maybe make it a bit clearer with something like "the hitman that works for the above"?