User blog comment:40kfan/A Community Project Idea - Part 2/@comment-8395098-20141203024909/@comment-8395098-20141205224651

lots of things.

He hates the emperor for diffrent reasons than the typical False Emperor BS, it's more like he despises him for Impersonating the Omnissiah.

He obviously has an obsession with bypassing death, and continiuing his existance even after the physical form has ceased.

He also has few resources of his own and instead builds with what he can scavange.