Forum:ME2- "No One Left Behind"

The walkthrough on this site says:

"There are two ways to get to the center of the station, but a specialist must pass through a thermal vent in order to get the two squads through to the next area of the station.
 * Ideal: Legion, Tali or Kasumi
 * Non ideal: Anyone else, as they will be shot attempting to close the doors."

Just for the first point... I gained the loyalty of absolutely everyone before going out to this mission. I sent Legion off into the vents and he was still shot attempting to close the door. Is it just chance that he will live? Anyone else have a problem similar to this? Also, Mordin died later on when he should have been protected by a second squad leader, but I'm not as worried about him at the moment.