It's very interesting :D I'm intrigued.

I'd advise you to watch out for punctuation errors, especially with dialogue (see below) - it'll make the story easier to read/less distracting. I also found this chapter confusing simply because of the sheer number of people you tried to introduce in a very short time. Try narrowing in on a few characters in particular, instead of trying to introduce them all at once. Less overwhelming that way.

That said, you have a good balance of description and dialogue in this chapter, which made it easy to read. I love how you reveal that it was all a simulation, not a real mission. Also thought the banter between the characters was well-written and fun.

Minor details:

“Is everyone in position?” (a) tall, dark haired boy said into his mouthpiece.

“Ready, Ant(,)” (a) female voice replied. -- I noticed this in other places, too. The dialogue is part of the sentence in this case, and should be punctuated accordingly. For reference, try googling "dialogue punctuation"; there are a lot of good sites online that can probably explain better than I can.

Since all vehicles are now powered by hydrogen -- "are" should be "were" since it's past tense.

Standing tallest of the group, Cosmo was easy to spot with his indigo hair, which often had an unkempt look. -- I wonder if you could incorporate the description into the dialogue/action sequence, rather than having separate paragraphs describing each of the characters. Show, don't tell.

The Sun was setting, but it was still too early to go to sleep. -- I don't think sun should be capitalized

Wow... my sincerest apologies. I kept intending to review this story to thank you for reviewing mine, but what with finals and everything... it's been crazy around here.

Finally, a story with a real science component! I can tell you've studied biology :) I find it a little hard to believe that the gas would cause this to happen itself, however; I'm thinking that a virus *inside* the gas could cause such behavior. Then again, this is fiction.

How do they know little Gabriel was born with the disease? Do they test every baby born for the disease, or something?

"However, all adults who received the ‘treatment’ died." -- What do you mean by the 'treatment'? Do you mean they injected blood samples from Gabriel into the adults? This is a little vague.

Okay, the next part confused me a little. So the wealthiest individuals were the only ones who survived, because they got Gabriel's treatment, correct? They are born with the alien chromosome but they are immune... And of this category, there are two divisions: gifted and cursed? I think you could explain this part a little bit more.

Overall, an interesting beginning; for the most part, you explain the background of the story pretty well. Some of the flow felt a little off in places, and I'd advise you to watch out for run-ons (see below). On to the next chapter!

Minor details:

Although the asteroid was small and nobody died from the impact in the centre of the Pacific Ocean(,) many died from the after(-)effects.

When breathed in(,) the gas penetrated into the nucleus of the cells and stayed there.

The people rejoiced and named the child Gabriel(,) as his arrival was said to be a message to humankind that it was not the end.

When left(,) it copies the structure of an RNA strand that leaves the nucleus during cell division,

The alien chromosome causes every human being to be born with a unique talent(.) (S)ome are useless like the ability to liquidise oneself and (some) are incredible such as flight, healing or elemental manipulation.

Here we are split into squads of 5 Curses each and given jobs to do in other universes for money(.) (W)hether we survive or not is irrelevant in their eyes as long as the job is done.

The opening reads a bit like a voice over to a Science Fiction Film. Not a bad thing though, although I did think I was going to get bored with all the background stuff. I really like the idea of having the Gifts and the Cursed though. It's interesting and original and you managed to get me hooked.
Liked the next chapter too, although I'm probably not going to remember all the characters that were introduced. I like Aero though, I'd like to learn more about her.

o this is long
so i'm reviewing as i read/stuff that sticks out to me
"Its rays caused the air to ripple.." (since you didnt say sun before, it was kind of confusing)
"not many stayed out into the sun" (in the sun?)
a rifle doesnt have an eye piece does it? are you thinking of a sniper?
"powered (by?) hydrogen"
good description of the wind making her bangs/clothes ripple. very movie- esque
"no matter (how?) he tried."
"the man who slowly (slumped) in his seat..."
the sentence "despite antonio being the leader..." is awkward, as is the sentence that follows.
maybe... (Despite Antonio's role as the leader, cosmo was actually the oldest. But cosmo's lazy atitude (im assuming cosmo since i dont know who 'he' is refering to)
do you really need all the details? sometimes, over describing the people or the situation can be bad since it takes away from the intensity of the plot/makes people distracted.
great beginning, very very good descriptions and good flow

-artificial destiny

You know that whole deal of hooking a writer into the story. Uhm. Hi. Yeah. THIS IS FRIGGIN' AWESOME FOR THAT. It's an interesting semi-scientifically plausible explanation for not just one person having superpowers, but for an entire civilization.

That last paragraph especially did it. Assassination and infiltration at age 10? "Welcome to my world"? I WANNA SEE THIS WORLD! Haha.

Very good.

Review Game!

You've got what looks like a nice plot here. Nice set up, and I can tell you put lots of thought into it. I think that your explanation of the exact methods of the virus was a little too vague, however. You're going to need to explain how this extra chromosome can do all of these things; it has too disparate of an effect to seem realistic. It would also help if you talked about these aliens. There is another aspect of your assumption that an alien lifeform would have the same method of genetic encoding as creatures on Earth do, but with a more detailed description I think that you would be able to make that seem a valid notion. If you put it all in here, it would take too long and readers might lose interest; however, I suggest that you take it out and work it into the story at a later point if you can fully and clearly explain yourself here. The vagaries make it seem as though you don't know your subject matter, and that's death in the realm of sciffy.

You have numerous grammar mistakes (you might not understand clauses fully, so you use commas, semicolons, and periods in correctly). If you don't know how to fix it, I would just get a grammar nut to run through it for you quickly and just correct it. In general, there's no major issues, but the misuse is ruining the flow of your language.
Also, when a quote continues on to another paragraph, you have to put another quotation mark at the start of the following paragraph(s). You don't have to close it until the speaker is finished, though. That's how we do it in America, though; we also use the double quote as our regular quotation mark, so things might just be different in Britain. At any rate, it's not really having any serious effect on your piece, I was just letting you know.

I think that you do a good job of characterizing Aero through this speech. He's relaxed around the reader, and I feel as though I'm starting to get a feel for his personality, which is excellent given the informative and matter of fact nature of the history you have to impart.

I particularly like your system of gifts. The system you have worked out here leaves lots of room for character and social tensions, political climates, and provides an excellent backdrop for the entire piece. It's great material that you have here; however, I'm curious about why he didn't realize his gift until he was ten. It could be used to create suspense as the reader waits to find out why this is, but the casual way that you mention it makes it seem as though you just haven't thought far enough ahead to figure out the why just yet.

I also liked the element of the missing father. You seemed to be developing some tension with the mother, but you don't describe it deeply enough or with the appropriate tone to really convey what's going on.

Numbering system is great, really shows how these people are objectified by the realm of the talents. Also, I'm incredibly interested in that assassination and infiltration group that you mentioned. And what does it mean that he's the third member? the third in charge? Or the third to have joined? The fact that you don't explain that just yet is a good thing in my opinion, but I hope you explain it later.

The ending is pretty good in general. "Welcome to my world" is a little cliche and overused, but I think that it can work well in this context.

To be honest, overall I'm not that into this yet, mostly because of what appears to be a lack of a fully educated description. You've got a good idea to start with, but I think that you have a lot of fleshing out to do to make this seem as though it will be fully thought out and well developed. You've got a lot of research to do... you should learn more about DNA for starters, and then you should research some more about the influence of genes on the human body, different ways chromosomes can affect it, theories about alien life... And even after you've done all of that research, I would make an outline of sorts, where you at least flesh out the character relations that Aero starts out with. Right now, they are very vague, general, nonspecific things that actually cause me to shy away from your writing rather than become intrigued by it. I think that this definitely has a lot of potential though, so keep working on it!

Your names and personality of the characters are really interesting and unique(can't say the same for mine) which I like and you give a lot of background information before the story so the reader knows what the plot exactly is, so good start.

I think your story has me hooked. The explanatory narration is really suitable for the background history it describes, and the history itself is original and exciting. I like where the plot is heading even though it's a little vague at the moment, and the glimpse into the title character's life is really nice. The last sentence, "Welcome to my world", is very eye-catching. I guess the beginning could have been more attention-grabbing, but I don't think that's much of an issue. Also, the first sentence seems a little convoluted. Perhaps you could break it up into two sentences. But other than that, this is fantastic. Keep it up!