I really hope he was meant to be satire. Other than some theories that he's a war veteran making him almost interesting, this guy is just pure edginess.

Other than his game being a rough successor to Postal 1, there ain't much too him but "edgy man with gun"

With the hair and how he wanted to annihilate Humanity he made me think of Eren Yeager. The biggest difference being that Eren Jaeger is not a misanthrope.