Hmmm, it is very difficult to judge from such a small snippet, but I do have some comments. Style seems good, the narrative flows well, and the pacing is fine. Because this is a snippet, I assume we are introduced to these characters earlier on, because right now, they're individual personalities are a complete mystery. However, I will say that for being soldiers, they don't act very 'military'. Sure, military personel are chummy and casual most of the time, but they are anything but casual in life-or-death situations, such as being under attack. First off, who's in charge? If the station is attacked, someone is going to order reinforcements sent out to protect the station (right now, it seems like there was only one ship outside, the Tiara.) I also felt Jason gave up a rescue way to easily, especially for how angry he is at the end. I felt someone
that upset would not be stopped by a plea for his own saftey but rather by a direct military command. Lastly, the conversation about Marco seems misplaced in the middle of a battle. I realize he is mentioned because he has some special relationship with Jesse, but unless he was injured in the story right before this incident (and the mention of a long-term coma suggests he wasn't), it just doesn't seem he would be the topic of conversation while they are under attack.
If I am mistaken about any of my assumptions or impressions about the characters, then it probably means you'll need to make certain facts more clear for the reader. I feel it's a good beginning (even though it isn't actually the begining
. Just be sure and think things through for each of your characters. Good, believable characters are key to a good story. Good luck!