Great stuff, love to see Kill Team Batreps
I would agree with you about the fire warriors - their BS3 seems to be offset by the S5 and greater ranger of the pulse rifle, making them perform surprisingly well in this format. But then Tau have some pretty good units for Kill team - Crisis Suits are awesome (all suit
FE Teams with
JSJ = hilarious), Stealth suits really come into their own (esp. dense urban games), pathfinders with special weapons can be very hard hitting, while kroot hordes are also very effective.
Are you going to do all 6 Kill team missions? I recently did them and wrote them up here on Dakka too, and they were great fun to play.