Mine in italics.
Just then, two phase blasts hit The Armstrong, one just aft of the bridge and another port side, at mid-ship. The bridge exploded with debris, everyone was slammed into something solid or found themselves on the deck. Commander Morgan rose first with blood dripping from a head wound. He still had his senses about him. Captain Arnold lay bleeding on the deck, along with half of the bridge crew.
Just then, two phase blast hit The Armstrong, one just aft of the bridge, another at port side mid-ship. The bridge exploded with debris, the shock slamming people into walls or down on the ground. Commander Morgan rose first, blood dripping from a wound on his head.
“Mikal! We just received a message from HQ on screen. It’s marked urgent! Mikal!”
There should be a new paragraph here so it doesn't look as though you'vegot two people spreaking in the same paragraph.
Mikal roused himself from his nap, “Vander, you’re on this shift. What’s so damned important that you have to wake me up?”
“sh*t! Why didn’t you say so in the first place?” Mikal responded as he rose out of his bunk quickly for a large man, most of Mikal’s bulk was muscle. Should be a comma here. (most of Mikal's bulk was muscle, with a little belly he was planning on working off) With a little belly that he swore he was going to work off when this present assignment was over. He joined Vander at the central console and studied the message.
"sh*t! Why didn't you say so in the first place?" Mikal responded, rising out of the bunk with a speed belying his large frame. Though he'd like to say most of the bulk was muscle there was still a belly he swore he was going to work off soon as this assignment was done.