Huey is a somewhat interesting character in just how pathetic he is. He's selfish and he lies constantly, always trying to put himself in the best light, always making himself out to be a victim, covering up his past and his sins with a patchwork blanket of self-deceit. That's fine.
But it leaves our perception of Diamond Dogs in a weird place, because Huey is the only one who seems to realize how monstrous the organization fundamentally is, enriching itself off of artificially prolonging bloody, terrible civil conflicts. The fighting in Africa is this awful ethnic civil war with child soldiers, fueled by blood diamonds, and the fighting can continue because there are private groups like Diamond Dogs who don't really care what cause they're fighting for as long as they get paid (and as long as it doesn't make them a tool of XOF).
Huey is the only one in the game to raise these kinds of objections, but only when he's trying to save his own skin, well after he's been utterly discredited as a hypocrite who harms people close to him for personal gain. So I guess Diamond Dogs is a noble cause, Miller's paranoia is basically justified, and the repeated detention and torture of their private prisoners goes unchallenged.
His lines in Mission 43 could mean something in the right context, but coming from his mouth at that point in the game, they do more to remove the player's culpability than they do to emphasize it.
