System of simulation and design-assist of underwater combat apparatuses and method thereof

A system (1) of simulation and design-assist of underwater combat apparatuses, having a processing platform (2, 7) for performing a simulation program (15) having a modular architecture. The simulation program includes modules to implement: the definition of a number of mission operation requirements; the selection and configuration, on the basis of said operation requirements, of naval vessels and/or combat and weapon systems from a plurality of models of naval vessel and/or combat and weapon systems; the simulation of the behavior of said naval vessels and/or combat and weapon systems selected and configured, in a mission operation scenario; and the generation of the results of said simulation.