So when is the U.S. Army and Marine Corps going to make shot guns the weapon of choice for infantry units?
Oh, that's right. Never.
Because, unlike you and Ted Nugent, they understand weapons, ballistics, rate of fire, et. al.
I like shotguns for taking out zombies, or in some close-quarter trench warfare situations. At least that what Call of Duty has taught me!
If you want to lay down a hailstorm of lead, and put a lot of lethal damage on an enemy you are going to need semi-automatic and automatic assault rifles.
Although my personal favorite is the Soviet PPSh-41 submachine gun. The rate and amount of lead that thing puts out defies reason! It is my weapon of choice in WW2 Call of Duty franchise games!
What gave you the idea that the military doesn't use shotguns?
http://www.gunsinternational.com/guns-for-sale-online/shotguns/military-shotguns-us.cfm?cat_id=639