I think I just won this game and I'm not really sure how.
So clearly, Kill Team is a very different game and playing the mission is the way to victory. We played "Prisoners" and I was able to score one more victory point than HoR and even though I was tabled I still won 'cause... well... there's no provision for auto win when your opponent is wiped off the board. I suppose that makes sense... If you take narrative sources as an example, such as "Rogue One", it's possible for the team to be wiped out but still accomplish their mission.
I kinda liked the mechanics of Kill Team. It was a fast and furious game. We were done in about an hour and 20 minutes. It was also pretty cool from a transport point of view: It's way easier to bring six models than 100. That said... It wasn't as fulfilling as a full on 40K game.