Huh, Garrus is tech, so you'd think, especally since he knew Decryption in ME1...

I think I lost the Justicar due to loyalty (ran off to save everybody instead of doing her mission), and I don't know what happened to Miranda. She was leading the second team during the biotic shield part, and she was wounded at the end. I took Legion and Thane for the final part (Side note: insane final boss fight, though I should have seen it comming. If you drop it into a pit...), and when Shepard radioed back, Jack was on the comm. Combine that with there being 2 coffins in the end scene (we appear to have left the Justicar's body behind) and Miranda not being in the shot of the crew just before Joker hands you the datapad, and I'm pretty sure I lost her. At least Jacob got Chakwas and gang back safely...