Just a quick and rough idea I wanted to get out. Lately I've been noticing that concept artists have been fond of putting out exoskeleton design ideas - which pretty much involve putting frames/tresses and mechanized joints on the wearer's suit, which comes down to slapping motorcycle frame textures here and there. The results are cool, but not quite my style.
I tried simply overlaying mechanized parts on the wearer's body and it didn't seem to work for me. Ideally I decided what I wanted was something that fell along the lines of Ripley's powerloader from Aliens and the APU's from the third Matrix film.
The pilot of this particular exoskeleton can still use conventional small arms when necessary - in the event the frame mounted weapons run out of ammunition or encounter critical failure, engage threats at very close range, or engage threats that do not justify the use of heavier weapons.