This paper informs about simulation used in education and training process. The focus is on infantry and crowd behaviors on constructive simulation centers that are established on Simulation centers in Slovak Armed Forces. Training audiences taking participation on this simulation type are military staffs and civilian crisis management staffs. Simulation system is based on the software named OTB (OneSAF Testbed Baseline) International release. This article describes possible ways of how infantry units and crowd behaviors can be simulated in constructive simulation and how other simulation levels can bring advantages into constructive simulation. The simulation of individuals brings new sophisticated look on operations other than war and crisis management scenarios solution.