This

EDIT: ♥♥♥♥! No automerge

Dark matter is useless as currency, as it makes up 90ish percent of the universe. Of course, you could "refine" it into a more valuable form(grav bombs) in theory.

A more useful uber-quasi matter thing would exotic matter, as you could theoretically manipulate space time with it. As in plop off a new miniversre, time travel, FTL travel and other things.

Leave it to DRFF to convert a thread about a fan-made short story into a discussion over Dark Matter.

what

Do you have a PHD in cloning? Why would you need dark energy to clone people? We can clone animals with conventional sources of power now.

*Shameless BUMP*

Second chapter is even worse than the first. Is the OP eleven years old or something?

not the greatest writing but i can already see improvement(try to make the clones seem a bit darker in their tone it will make it seem more realistic[do the chapters on word first so you can get spelling and grammer check then copy paste it up])

Hmmm, still not quite getting anywhere here. You might want to skip or roughly mention things that are not important. Like that whole weapon-choosing session is taking too long. I'd rather have their personalities expressed during combat simulation instead of here, makes the story loses momentum.

I think it's been plummeting long enough for it to have hit terminal velocity. My only hope is that it hits rock bottom sooner, rather than later, and that it does not begin to dig.

Like a dead clone, not a shield with a grenade above it.

Well, as a writer myself, I see it only fair to critique this.
First of all, I see a very big writing flaw in the second sentence. At this point, I can already see this going into a little child's book for the very reason that you asked the reader a question at all. Typically, that's done in the context as a thought for a character.
After a little bit more reading, I see another thing. I'm not sure if that last sentence in the first paragraph is actually the truth, but even if it is, it's ripped right out of at least Star Wars if not other things as well. Basically, that doesn't necessarily have to fall on the author's shoulders, but if he thought it for this and it wasn't in the wiki or some other reliable database, it does.
In the second paragraph, you did better. However, you used the word cortex two sentences in a row. It's always handy to use a thesaurus and not put the same word twice. You also employed sensible logic in the second paragraph about the costs, and how human minds are superior. That's good.
The third paragraph, you switched back into narrator mode and I suddenly got the impression that you read Hitchhiker's Guide to the galaxy. That being said, that's not a bad way to do it.
However, you continue asking questions in the third paragraph. Like I mentioned, don't ask the reader questions, even hypothetical. Do stuff like that when you're embodying a character and have them think the question. After thinking it over, I think that you have also read Order 66 when you mentioned "new clones".
You say he walked to the sender and sent the vial to the cloning vats. Again, thesaurus.
At this point you choose to end the first chapter. That's when it hit me: You used his name once in the entire first chapter. Pronouns need to be interspersed with proper nouns. Don't just say "He" all the time.

In the second chapter, you have instantly established what the outcome is. I like knowing the result quickly, but it's good to sometimes inspire suspense in a reader. "Now, Mikhail and two of his colleagues have to pick the clones who are normal also mentally." Pretty hacky. You switched into present time. Here's a possible replacement: "It came time for Mikhail and two of his colleagues to pick out which normal-looking clones were mentally stable."
The next part...GOOD LORD, WHAT IS THAT? First, you start off with this incredibly odd way of doing things. You entered a script mode of story making. Don't switch styles. Stay literature or script, don't change. I noticed, yet AGAIN, that you must've read Order 66 or another republic commando book because there were exactly 4. Not to mention that it was like Chip and Dale. Seriously, I'd have retired those guys as well!
The rest...like I said, don't go script. I had no idea who was talking. That's bad even for script writing.
For the record, script is:"Clone 1: 'Thanks for getting rid of those idiots.'" while literature is "He looked gratefully at the professor and thanked him, 'Thanks for getting rid of those idiots.'"
This has been a nice critiquing from Ultric.
tl;dr: Read it anyway.