I'm with most of the other commenters on this one. The initial idea was interesting, but as it went on, it seemed like it was just an exercise in "What is the most excessive threat I can set against my characters to justify the ultraviolence?" rather than serious worldbuilding. The complaint that Saint was an archetype more than a character was painfully true, and he is not at all an archetype I find interesting or engaging. Sort of an egregious action-hero amalgam. I had the MST3K cant from "Space Mutiny" running through my head the whole time ("Beat Punch-Beef! Big McLargeHuge! Blast Hardcheese!"), and honestly I rolled my eyes when he turned his steely eyes on his slender love interest and growled about how "they" wanted to "use [him] as a weapon." The testerone-addled angel of Jason Bourne, himself heir to the bullet-riddled crown of the mediocre spinoff 80's action flick, looked down and smiled.
(I think what annoys me about this archetype is its origin. USian men have over two hundred years of ruminating about how manly and macho and studly they are, and fretting that they might become or be perceived as effete, European, or, God forbid, intellectual. This ridiculous emphasis on masculinity and power and aggression just does not match up with most people's experience of themselves as male. The fantasy of the One Manly Man who does What Must Be Done and carries his Secret Burden with Stoic Resolve is the cancerous outgrowth of that fear, both stemming from it and perpetuating it, and it just makes me tired and sad.)
The writing was decent in terms of craft and skill, albeit more than a titch melodramatic in tone. (But this was clearly a feature, not a bug, even if it made it hard for me to care much about the characters.) I'm not personally a fan of gore - as I've said before, it doesn't so much squick me out as bore me - but I'm sure those who enjoy it would be able to glean something from this piece. But for me, this story was a pretty big miss on every level.