Behavior modeling for Computer Generated Forces (CGF) requires knowledge acquisition and knowledge engineering. Traditionally, behavior modeling has been viewed as two distinct processes, a knowledge acquisition process being performed solely by military subject matter experts and a knowledge engineering process performed solely by software engineers. A need to combine these separated actions into a collective process has existed for many years and should be formally instituted in the interest of program efficiency. This paper presents a knowledge acquisition/knowledge engineering hybrid document designed to combine the doctrinally correct textual descriptions of military tactics, techniques and procedures written by subject matter experts and the engineering of this information into a software format called logic developed by a software engineer. To provide a perspective, this paper compares the knowledge acquisition document and software development process utilized by Close Combat Tactical Trainer (CCTT) with the knowledge acquisition/knowledge engineering hybrid document and software development process designed for use by the Army's next generation training simulation, OneSAF Objective System (OOS). The enabling construct for analysis of the two knowledge acquisition documents will be a study of like behaviors modeled in each training simulation. CCTT CIS ID# B1401, Engage Targets, Attack Helicopter Company is compared to OOS BKAD # 1BL0104BE0002B0, CO_ATK_HELO_ENGAGE_ TARGETS. The knowledge acquisition/knowledge engineering document developed for OneSAF Objective System has applicability for any training simulation software development process. This document would serve equally well as a standardized re-use document for Department of Defense simulations.