Forum:ME2 How do I ensure certain team memebers die during the suicide mission?

I sound awful for saying it but... How do I ensure certain emembers of the party die during the omega 4 relay mission? The person I'm most concerned with atm is Thane though I would like to inquire about the others as well for future reference. I know neglecting certain upgrades kill off certain people but I would like a more surefire and specific way. Thanks.