system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Why does SHIELD allow their agents so much personalization?

For such a strict and morally-grey organization, they sure do allow their agents a lot of freedom in personalization. Hawkeye has a bow and arrow, Black Widdow has the wrist zappers, Captain America has his shield. Some agents don't even carry guns at all. 

I can understand some of the hotshot agents being allowed some unique items, but it seems like everyone's allowed to use whatever weapons they want.
gpt
Those are the hotshot agents. Widow has been in the spy game since she was literally a child. Hawkeye is an Olympian-level marksman. Capt. is, well, Capt. They each have special traits or history of service that warrant a little leeway.

"Regular" field agents like Coulson, Sitwell, etc get your standard black suit and handgun. Combat groups get heavier kit, but still standardized. Hell, even Maria Hill doesn't get the fancy stuff.