What was wrong with the Pride's crewmen that they should lose consciousness but somehow still be alive. Were their suits leaking, or was it something else?

Seeing that they seemed to waking up in the shuttle, Anika will speak to them directly over the vox. 'Captain, this is the House Absalom vessel Manticore's Sting. Your people lost contact with you, and you seemed to be in some difficulty, so we chose to pull you out of there. Can you tell us what happened?'