User blog comment:Koveras Alvane/The Deadliest Path/@comment-151.27.192.232-20120904105142/@comment-256004-20120920095357

Actually, I loved ME3 to bits. Even the ending was tolerable with EC. ^^

I am not sure whether you can survive SM with just a single teammate alive but the guides say that you can. I have never actually did that, afraid to say. :(

Since you cannot take any old squadmates to Arrival, I would suspect that you can play it even after killing off all of them but Legion. But I have never tried that, either.