First things first. I'm going to be honest with you. This is, so far, a pretty average story. However, it has a lot of potential, I can see that. I'll stick by this and help you achieve that potential.
A few things I need to point out:
1. I rarely say this, but it needs to be said here: You need longer chapters. There are four sizes; too large, large, medium, small, and too small. You're currently sitting on too small. Just expand events more. "Apparently a SAM launcher controlled by a flood had hit their Pelican. Sebastain woke up and looked around." < An example of this. Hit, wake up. What you should have done was: hit, effect, knocked out, wake up. Expand on these things, but not too much. Don't drown your reader in details, but don't leave them standing in a drop of it either.
2. Every time someone speaks, it should be a new line. Instead of:
"Report!" He shouted needing to hear an answer. "Four gone, one almost to the light sir!" Sergeant Chang replied.
It should be:
"Report!" He shouted needing to hear an answer.
"Four gone, one almost to the light sir!" Sergeant Chang replied.
3. Another thing with speech. If you have a bit of speech with 'he said' afterwards, end the speech with a comma, not a full stop.
Instead of:
"I can tell." Sebastian said.
Have:
"I can tell," Sebastian said.
4. Spelling. Use a spell checker. I do not mean that harshly. There were some simple spelling errors that could have easily been avoided with a basic spell checker. I saw at least two different spellings of the main character's name. How do we relate to the main character if we're not sure how the author wants us to spell his name?
5. Numbers. Unless it's a designation such as "MA5B" or "Echo 5", etc, a number should be spelt out. "Eight other drop ships", not "8 other drop ships".
With every chapter you post from now on, I'll point out any spelling or grammatical errors that you have made. Hopefully there won't be any.
Do not take anything I've said too harshly. They are simply tips on how you can take this story from average to good, or even great. Feel free to PM me with any questions you have. I'd be glad to help.
Good work. Just follow my tips, and you should be able to do even better.
Officialy offline as of April 4 Australian time.