ngl too lazy to list changes, just general improvements

Made it a bit more accurate, as I realized it hit more wall than zombie.

Well, hoping wasn't enough. I should really test out this stuff before realeasing updates, or I may end up becoming the next Bethesda. Anyways, 3000 RPM was a bit too fast so I lowered it to 2000 RPM. Also, after taking the time to think about real life ammunition of the m134 minigun (7.62x51 Nato), I realised that my minigun's single bullet accuracy should be more accurate than MY AK-47 Script's, as 7.62x39 is less accurate (and also travels slower but idk if bullet velocity is a thing in source) than the aforementioned 7.62x51 Nato. There was also an ATTEMPT at fixing the sound bug caused by extremely fast fire rate.

Made the gun more balanced (or atleast compared to the laser beam that dealt 1000 dps at any range that used to be my script). Changes in values:
Cycle Rate - was 0.05, now 0.02 (1200 RPM to 3000 RPM)
Spread - was .1 per shot and .1 max, now 3 per shot and 30 max (use bursts)
Damage - was 50, now 35 (because of increased fire rate)
Pen. Layers - was 5, now 4
Range Falloff - was .97 after 1500 units, now .8 after 1500 units (max range is still 3000 units)
Hope this makes the gun a bit more balanced, and hoping is all I can do right now because yet again, I didn't test my script before uploading...