Now, I´m sorry to suggest GW rules, but have you considered the LOTOW rules? Nice ones for movement, shooting and fighting, and additionally, you can handle any task, like hacking into a KBG punchcard/magnetape mainframe, by the 1/2-5/6 test. And you´ve got that "luck" effect to save your master spy from inevitable peril. I don´t yet own KKBB figures but will get some soon, I hope, and I´ve used the LOTOW rules for almost any post-1700 skirmish gaming with success.