The plot itself was pretty meh, if not completely depressing. "Oh look, the world got ravaged due to technology and now we have the embodiment of Satan roaming around randomly killing lots of people. If you pray to the church, though, everything will be hunky dory as our martyrs go get the MacGuffin from Jesus to extend a false sense of hope and continue the cycle of death and killing! Oh wait, the church is also filled with corrupt undead ministers and uses more technology than the entire rest of the world combined! Oh well. Time to kill God!"
To be fair, though, the concept of dying and only remaining because of a singular purpose that defies death itself is actually an interesting plot point. It just was a little too convenient.