The PROBE SIM 3D R&D project (2013-2016), founded by DGA (French Government Defense procurement and technology agency), has allowed SIRADEL to develop, in a context of emergency production, semi-automatic methods to produce quickly at a large scale 3D cities from heterogeneous data, and to simulate dynamically in Virtual Battlespace 3 (VBS3 from Bohemia Interactive Simulations) the performance of a radio network virtually deployed. More precisely, the combined use of 3D models of buildings and the best-in-class SIRADEL’s Volcano RF propagation models increases the level of realism through 3D rendering and dynamic radio simulation. Finally, we developped a decision making platform, based on Smart City Explorer, so as to deploy any kind of wireless networks, before external operations for instance.