I was reading the [ME3](http://masseffect.wikia.com/wiki/Mass_Effect_3) entry in the [Mass Effect Wiki](http://masseffect.wikia.com/) when I read that Captain Kirrahe would return in some fashion if he survived the assault on Saren's base on Virmire. Now maybe I missed something the first two times around, but I know for certain that I didn't save him the third time I played the game.

I'm aware that without disabling some stuff before reaching the base, Kirrahe will almost certainly die, however, I'd like to know if there's a time component, or other specific actions that will effect this outcome. Of special interest is whether choosing to aid the team at the AA guns or return to the bomb site has any effect.