an integrated receiver consisting of sensors on the helmet and load-bearing vests of the soldiers. When a blank shot was fired by a weapon, it caused the laser to fire a coded burst in the direction that the weapon was aimed. If that burst was sensed by the receiver of another soldier, the "hit" soldier's gear beacon made a beeping noise to let them know they were "dead". MILES had serious problems—when hit, the receiver did not prevent the further firing of the weapon, and it was tempting and easy for soldiers to "cheat" by turning the receivers off and back on again, resetting the system and therefore "respawning" or "resurrecting" themselves. In addition, no data about the engagement was kept so it was impossible to positively identify who shot whom on the battlefield, a critical piece of information when attempting to develop new tactics. MILES was also very encumbering and soldiers sometimes experienced neck pain when using it. In 1981, Simulaser Corporation was founded by two entrepreneur engineers and began operations near Los Angeles to develop "Advanced MILES" training systems. Under initial contracts from Sandia National Labs, Simulaser produced standard MILES replacement laser transmitters and man-worn detector systems as well as "Advanced MILES" devices that incorporated player identification and scoring systems. These Advanced MILES systems made use of the CMOS 146800-series embedded controllers that had just become available at that time. The systems interleaved unique player identification codes within the weapon code bits transmitted by the laser, which were then stored by the receiver system of any player that was hit. Those systems utilized a controller gun to initialize each player, thus preventing players from "resurrecting" themselves by re-inserting the yellow weapon key. Each player's data was stored in memory until downloaded by the controller unit at the conclusion of the training exercise. Simulaser made use of hybrid microcircuits to reduce the size of certain components and eliminated the electronic module on the back of the helmet to improve player comfort. Simulaser also manufactured laser detector components and systems for vehicle applications sold to Sandia Labs and EG&G Inc., the operations and maintenance contractor at Kirtland AFB for use in training guards and couriers. Simulaser was acquired by Applied Solar Energy Corp. (ASEC, City of Industry, CA), its major supplier of silicon detectors, in 1984. Later, under contract from Fairchild-Weston Systems, Simulaser produced the laser and detector systems for