as to enable for example the regular use of the handgun holster in the training exercise the alternative of connecting any part of the kit in a way that would change the outer shape or form factor of the weapon may alter its training use compared to its operational use in the case of an assault rifle training the trainee may use his own rifle equipped with the kit which does not alter the form factor of the weapon or the way it is used in action the vcu is preferably battery operated and is preferably designed to integrate onto the weapon in various possible configurations including a fitting into the front barrel and the flash reducer b fitting into the blank firing attachment which is used when training with blank rounds or may be used in dry training c fitting as an external attachment d fitting into the back barrel as a training bullet thus enabling regular operation of the weapon in various training modes the above fitting options may each provide different advantages for example by fitting the camera in the barrel or via the blank firing attachment i the a priori mechanical boresighting of the system prior to the required boresighting of the camera with the weapon sight is improved and the placement of the vcu in the front end of the weapon barrel enables a wide optical field of view fov so as enable the scoring of the process in which the trainee performs line of sight slewing and target acquisition prior to opening fire the vcu may transmit the video signal thru an rf link or a cable connection bandwidth and storage constraints may require video compression mjpeg.