Steam Powered Personal Assault Armour SPPAA or SPA

A very old personal steampunk design. I drew this maybe, almost 7 or 8 years before? A steam powered personal armour armed with a automatic gun as main weapon and a flamethrower for hard target such as bunkers. Two machine guns as secondary weapon on both sides of main body. It's a one man operation war-machine for assault squads in frontlines, aiming at breakthrough enemies' defend positions. And I designed this machine for a eastern Republic based on China, my country(of course not nowadays China).