The system includes various components to track and graphically display data related to a user, a weapon, munitions for the weapon, other munitions and equipment used by the user, and similar information about other users. The system can include a display device that can be attached to the weapon. A user can look through the display device while looking down the line-of-sight of the weapon to obtain the data on a heads-up-display. The information displayed can include the point-of-impact of a projectile to be fired from the weapon, the number of unused rounds in the user's inventory, whether a magazine is inserted into the weapon, a map of the field of view, identification of friendlies and hostiles, a distance to a target, a count of other assets (e.g., munitions and other equipment) in the user's inventory, and other information about other users.