Now for the pleasure of making it an RPG, the sci-fi universe is relaunched.
More a semi-poweraror than a regular armor (hidraulic motors provide movement to joints to make the frame easier to operate) the standart issue Storm Armor Modification 35 "Mantis" is produced by Horizont joined industries on Voshod.
Though slow to move in it provides great protection from most energy and balistic weapons. In addition, as every Voshod storm trooper armor, it can provide constant injections of component "berserk", making the trooper an unstoppable warmachine...
Over the the course of its use the armor modifications to the original design were minimal, mostly updating on the software, sensors, motor efficiency and quality of the materials, thus even military engineers have a hard time distinguishing between various modifications of the armor. To their advantage most parts in older and new armors are interchangeable. That and the lack of any top-line super-technologies made this suit legendary in terms of reliability and service lifespan. Some suites still used in the army garrisons date to be more than hundred years old, back to 14 and 15th modifications, though most suits prior to the 12th model are usualy seen in museums and not on battlefields.