Complexity is abundant in nature, in society, and in the workplace. The business sector has recently experimented with business wargaming, which is based upon complex adaptive systems theory, as a tool for policy analysis and management training. Business wargames, based upon agent-based simulation technology, provide a flexible platform using software agents that are programmed with simple rules, interact with each other and their environment. This interaction leads to emergent behavior, which evolves from the collective interaction and adaptation of these agents. This thesis discusses the experiences and lessons learned from the U.S. Army's Firm Handshake Proof of Principle business wargame, and applies them to a Marine Corps' counterpart game called SimMarineCorps. SimMarineCorps will model the Marine Corps' Human Resource Development Process (HRDP). This architecture consists of players, screens, agents, rules of engagement, and relationships among and between the players and agents. Critical success factors for SimMarineCorps is General Officer support to ensure that the necessary data/metrics are collected and validated.