The Lyran Commonwealth's Infiltrator Mk. I BattleArmor suit is a light reconnaissance design fitted with some of the most advanced stealth technology of any BattleArmor.
         This remarkable design was based on Clan technology acquired during operations by the First Somerset Strikers, as well as prototype BattleArmor research being conducted at the Federated Commonwealth's NAIS. Although much of the technology required to construct the light reconnaissance unit had existed for some time before its development, it took the Clan invasion to make tactical planners appreciate the advantages of fielding such complicated and well-integrated systems in such a small package.
         The first prototype Infiltrator was deployed by the Somerset Strikers during their raiding campaign against the Jade Falcons in 3050. Oddly enough, a cadet aerospace pilot named Katiara Kylie first piloted the unit, perhaps because of her interest in new technologies. Kylie survived the Jihad and now commands Tharkad's fighter defenses from the Somerset's Rise, an upgraded Excalibur purchased from Solaris.

         Designed for tactical scout missions in heavily monitored enemy environments, the Infiltrator carries a sophisticated array of stealth systems that provide it with remarkable abilities to avoid detection, as well as sensitive intelligence-gathering devices. Using the Infiltrator's advanced radar and infra-red suppression systems, Infiltrator troops can disguise their radar and heat signatures with great effect and slip into enemy areas. Once in position, the Infiltrator trooper can use passive infra-red sensors, sensitive magnetic-anomaly detectors, and other components from the suit's impressive array of sensing and recording equipment to gather intelligence on enemy forces. The tactical advantages provided by the ability to position such sophisticated intelligence-gathering equipment deep within enemy-occupied territory make the Infiltrator one of the most important reconnaissance weapons available.
         Like most other reconnaissance designs, the Infiltrator carries little in the way of offensive armaments and armor. Its single grenade launcher can provide only generalized defensive fire, and its relatively weak armor is designed to withstand small-arms fire only.

         The Infiltrator marks an important milestone in the development of Inner Sphere BattleArmor. Despite its sub-standard performance in battle, the suit is often found on today's battlefields. Thousands of Infiltrator suits were deployed across the Federated Commonwealth before the secession of the Lyran Alliance in 3057, and many of those survived both the FedCom Civil War and the Jihad. The Infiltrator Mk. II has replaced their older cousins in the Federated Suns, but the realms once part of the Lyran Commonwealth and the Hanseatic League produce and field the design in mass numbers to act as scouts for their primary combatants.