[Garrus' demeanor sobers up quite a bit, his voice lowering with the faintest hint of a growl]

Hate to break it to you, but that's pretty much how Omega operates. You've got your merc bands, your pretty criminals, and then the people caught between all of 'em who don't know any better other than buying a gun and hoping the guy they meet on the street doesn't have one that's bigger.