EDIT: This article used to contain the 1st version of the Kill Team rules. Since this was posted the rule set has grown and grown! You can find the latest Kill Team core rules, campaign rules, kill team lists, roster sheets and other materials at: http://heralds-of-ruin.blogspot.co.uk/p/kill-team-rules.html or click on the Kill Team tab on the nav menu above.
Happy gaming!
Darth Meer