Anakin braced himself against a force push by Assaj in the cartoon. He was running at full sprint though. For all intents and purposes it seems they levitate the object their throwing and send it flying with a wave of energy. Which is why most things always move in a straight line when pushed/pulled. This is just my observation though.
Reloading can have little or no impact on gameplay. Depends on how far you want to go up the realism chain.
Clips or Battery? (Packed clips, or loss of remaining
Animated Reloads?
With either one your going to be introducing delays before they can fire again. Clips more so than a battery. Same with animated reloads.
Not sure if any thought was put towards that, but since I didn't see it....