The opening monologue goes to show just how much Higgins doesn't understand Deathstroke. Deathstroke has always been about the honor of it all and has always been loyal to USA...
The "training" scene with Deathstroke and the weapon's guy utterly destroys the whole "badass" thing Higgins has been trying to build up as does the someone getting the kill other than Deathstroke.
It's not a bad story, but it's nothing good either...especially since Higgins has set out to make him a "badass" but doesn't seem to know how to do it.
My recommendation is to check it out, but don't buy unless you really like what you see.