OK, just finished reading it.
To be honest, Fred, it wasn't badly written but there was just a few holes that Brandon was right in pointing out. The one that struck me most obviously was Curtis: this kid's meant to have been banging and slanging since he was barely into double digits, and not just on corners, but as a shot caller. This is a hardcore guy that would not just quit after something that was - really - a personal beef, between him and what was it? A girlfriend? I don't remember exactly, but that kind of heel face turn... well, it don't make sense.
And even more weirdly, why would Moore's MOTHER, of all people, introduce Curtis to him?! Why would she bring him round? How does she know him? Oh, yeah, student, right, and yet she brings this guy around because "he might be able to help him out", implying that she KNOWS Thomas's business is killing people. Unlikely, dude, and if it isn't, you should have made it more clear.
And if Curtis has that stature out on the streets, he wouldn't NEED Moore to do his dirty work for him. He could whistle up some muscle with one phonecall and handle his OWN business, not be Moore's bitch.
The coke deal was stretching it, too. This ain't the Eighties, dude, coke doesn't go for forty a kilo anymore, especially on the East Coast. You'd be looking at thirty at the VERY MOST, and only for an uncut kilo in the middle of a drought, not some stepped-on shit. Check out online for a rough price guide, there's a few pages out there that could help.
The car deal as well was pretty sketchy: one Yaris for an Audi and a motorcycle? Granted, you provided a precidence in the link, but the bike, too? Well, at least it's Curtis's, not yours.
Everything else... yeah, I suppose it's not that bad, but don't be too greedy, and always remain grounded in reality. Try and think from the perspectives of the NPCs, don't just make them completely subservient to your wishes and Requests. Oh, and one more thing? And MP-44 was the replacement for the MP-40 Schmeisser subgun the Germans used in WWII: why the fuck would it be used by a bunch of ghetto bangers sixty years later in America?
Just asking...

_________________
"There was a time when I liked a good riot. Put on some heavy old street clothes that could stand a bit of sidewalk-scraping, infect myself with something good and contagious, then go out and stamp on some cops. It was great, being nine years old."
"You people don't know what the truth is! It's there, just under their bullshit, but you never look! That's what I hate most about this fucking city -- lies are news and the truth is obsolete!"
"So this Zealot comes to my door, all glazed eyes and clean reproductive organs, asking me if I ever think about God. So I tell him I killed God. I tracked God down like a rabid dog, hacked off his legs with a hedge trimmer, raped him with a corncob, and boiled off his corpse in an acid bath. So he pulls an alternating-current taser on me and tells me that only the Official Serbian Church of Tesla can save my polyphase intrinsic electric field, known to non-engineers as "the soul." So I hit him. What would you do?"