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[Star Wars] Questions about small arms and their use

After watching both trilogies + Episode VII over the course of the last week, The way that small arms are used in the Star Wars movies really doesn't make sense.

1. Power packs for blasters can hold a LOT of shots. Why does everyone completely disregard the principles of fire and movement, and fight toe to toe with murderously effective firearms. The only exceptions to this were a few clones in Episode III. There are definitely some blasters capable of extremely high volumes of fire, but they're just used like every other blaster and fired mindlessly in the general direction of the enemy. 

2. Do they not understand the potential of their weapons or has tactical knowledge regressed because most cultures in the galaxy lack a martial tradition that isn't centered around individual combat?

3. Speaking of blasters, why does everyone fire from the hip, and why do so few weapons have shoulder stocks, even collapsible ones. Do Stormtroopers have a targeting laser that shows up on their HUD? Why does everyone else do it? Do they just figure they'll correct off the first shot and eyeball it?
gpt
A couple of answers real quick.

> why do so few weapons have shoulder stocks, even collapsible ones. Do Stormtroopers have a targeting laser that shows up on their HUD?

No recoil to compensate for, and, yes, aiming is done by HUD in the Stormtroopers' masks.  You'll note that many of the rebel/resistance troops have optics of some sort on their weapons, as they don't have Stormtrooper helmets.  And they _do_ tend to aim.  You'll see this in various scenes, including the boarding of the Tantive IV, and Poe's sniping of Stormtroopers at the beginning of Episode VII.  Some of the characters we know and love don't aim because they are just that bad ass - Han Solo for example.