<Snipped quote by Pepperm1nts>
My father used to make guns as a hobby when he was my age, so I've had some experience with that sort of thing growing up. But I like old shit, so I always thought his muskets were cooler than the semi-autos. Never fucked with an Fully-Automatic of any sort though.
Pro tips from the Army:
Burst fire fucking sucks.
Automatic fire fucking sucks unless you're planted down on a bipod and even then you're shooting in like eight round bursts so you don't melt your barrel.
Semiauto is your friend.