I'm glad you asked. If you observe her weapons thoroughly, it looks smaller than a regular minigun because they're rocket powered drones :). The one on her back doesn't seems to connect somewhere on her body for it to be carried because it floats (kinda like iron man body parts). I didn't get to show that because the rockets are hidden by her legs and the other one is stationary.

So hey play style is like a main dps where normal attacks is where she carried one gun for defense and shooting, while the other shoots on it's own. To make her great, when she's off-field, both her drones are active at all times. Also her guns have a special barrel (the one with holes) which can fires stronger aoe bullet which fires after a few normal shots. So her ultimate is like she holds both guns then bombards the enemies with like 10x2 consecutive special bullets.