By the time I saw the KC, I had a method of getting full mech salvage - just tip them over with enough stability damage!! The missiles themselves don't do enough bulk damage to really take out the mech but do pack enough of a punch so that it keels over every turn. With a lucky head hit or two, or maybe a destroyed side torso, you'll only need two turns' worth of attacks to take it out and get the full mech as salvage.

It's gotten to the point now that I always bargain for 3 salvage slots. Even if I don't get any interesting mechs in the mission (I thought there was supposed to be a Raven somewher?), I'd still get interesting weapons or components that I can salvage.

Getting ready for the last fight now. I thought the campaign would be longer, but then again, I usually go to the story missions as soon as they pop up. I'm at Week 70 Day 1 now.