ok, this might sound a little weird at first but i found a website (http://www.jedipedia.de/wiki/index.php/Hauptseite, it's german) and it's a wiki about starwars. so to my first point: i think, all blaster weapons should have regenerative ammo, for two reasons: first, im always out of ammo and nobody gives me some -.-, and second it says, for example about the a280:"Das A280 hat eine regenerative Energiezelle und kann daher auch ohne Nachschubssorgen eingesetzt werden." or in english :" The A280 has a regenerative energy-cell and can therefore be used without further supplie-worries" or something like that, you get the point.
Secondary, i think you should be able to sprint until you stop doing so. These guys are soldiers and trained to be strong and persistent. Additionally, we don't know if and what kind's of drugs the empire might use?

Well, thats about it. Looking forwards to you 'constructive criticism'