I, too, do not like Kill Team. Or at least, not the most recent versions of it. The first Kill Team rules I saw were the ones in the 4th ed rulebook, that were about infiltration missions, and I loved those. I loved them so much I wrote a 30 page reboot of it, which can be found in my signature and I am shamelessly plugging even though I haven't done anything to it in ages.
Anyway, back on topic, I think I don't like the modern kill team because it feels kinda... pointless. The older one filled a niche in the fluff; it let you run stealth games that were otherwise missing from 40k. The modern version is just a small group of individuals fighting each other. To me, it just feels like 40k, but smaller. Not saying it's worthless, but I would rather play proper 40k or the older Kill Team (or Covert Operations, see the battle reports board for some of my old playtests with Narric!)
So, I lost my job last week, and will have a lot more free time starting next wednesday. I wonder if I could run a short CO campaign in the time it takes me to find more work..?