Yeah, Garrus was an amazing badass in ME2, no doubt. He was my immediate first thought for leading the second team on the suicide mission (obviously the choice Bioware wanted you to make). I did get Mordin killed on my first suicide mission runthrough, but I did it over again and sent him back with the Normandy survivors and everyone lived. I question the decision to let everyone survive the suicide mission though. Forcing at least some party members to die could have heightened the drama, and getting most/all of them to survive is pretty easy.