ORLANDO, Fla.–(BUSINESS WIRE)– #militarysimulation–Bohemia Interactive Simulations (BISim), a global developer of advanced military simulation and training software, announces the release of VBS4 20.1, BISim’s most important software release since 2013. VBS4 is an easy-to-use, whole-earth virtual and constructive simulation. It offers a massive step change over VBS3, providing greater ease of use, enhanced performance and a whole-Earth terrain representation. “VBS4 20.1 is a full and complete replacement for BISi