Military Simulation (MILSIM) operations are not your run of the mill airsoft event. By their very nature, MILSIM events are intended to simulate military operations including the confusion and chaos that come with them. This training manual is not intended to teach basic airsoft skills or to provide recommendations for what equipment to buy for MILSIM events. Instead, it is about Tactics, Techniques and Procedures (TTPs) that will assist airsoft players, teams and other small tactical elements to out-maneuver and defeat the opposing force to achieve victory at MILSIM events. This training manual begins by teaching airsoft players basic field-craft skills. Other topics including communications, close quarters battle techniques, battlefield formations, land warfare tactics, techniques and procedures build on that basic foundation. It is also intended to teach teams and other small tactical elements how to move tactically on the MILSIM battlement, how to use various forms of communication during operations, how to use drills to increase the survivability how to react to enemy contact, how to flank the enemy and how to use close quarters battle techniques and procedures to clear building rooms, hallways and stairways. It also explains the importance of communications, battle drills and security as well as how to apply these concepts to MILSIM. This tactical primer and training manual is designed to provide the tools to small teams and elements necessary to embrace the chaos on the MILSIM battlefield, to take the fight to the enemy and to achieve victory.More importantly, this tactical primer and training manual is intended to provide a framework for airsoft teams and tactical elements to modify the tactics, techniques and procedures contained herein to better fit their play style and to make them more effective. On the MILSIM battlefield, you must be more effective, more efficient and more flexible than your enemy to prevail. It is game of wits where the best tactics win.