 They were intended to serve as a manual on guerrilla warfare for Rogers' Ranger company, a 600 strong contingent whose members were personally selected by Rogers.The rules were the result of Rogers' blend of Native American tactics and his own innovative combat techniques, ideas that were considered revolutionary by military standards of the time.Combined with intensive training and live fire exercises, these rules created a mobile, well trained force that was capable of living off the land around it in order to sustain itself for long periods of time.