The power armor rewrites your personality when you wear it reducing you to nothing more then a mindless killing machine. Injectors feed hyper-condensed myomer into your body causing you to grow muscle mass beyond what fits into the suit. Your shoulder-mounted lascannon is kept cool by belt-fed heatsinks which get reduced to molten metal as it fires but to aim the weapon you have to hold it with both hands even as the heat melts off your regenerating flesh. Your power warhammer has an inbuilt atomic bomb and if your target somehow survives that you can finish them off with the lasderringerwait no thats not right power armor is just a suit of armor. wow #wh40k is lame