 The ability to precisely control their avatar's postural height allows users to make better use of cover and concealment, and to look and shoot out from behind cover while minimizing their exposure.The Virtual Battlespace combined arms simulators (VBS2 and its successor VBS3), from Bohemia Interactive Simulations (BIS), are used for training by the USMC, the US Army, and a number of the NATO armed forces.BIS worked closely with NRL to tightly integrate the Pointman interface with VBS, and to allow Pointman to control the posture of the user's avatar on a continuous basis.