The game engine will enable the Department of Defense to train military personnel in how to conduct military operations in urban terrain. The engine, which was developed in Red Storm Entertainment's North Carolina studio, will not be used for weapons training. Instead the government wants to use the high-tech system to help hone decision-making skills at the small-unit level. [snip]

The PR goes on to say how no game engine comes close to the realism Rogue Spear achieves.