Another suggestion: tapping reload would quickly reload your gun throwing the empty mag on the floor making a semi loud noise, while holding it down for maybe half a second would start a slower more careful reload that is far quieter. This would also apply to opening doors, where tapping would kick it open or slam it shut super quickly, while holding it down would quietly open or close the door. This would add another layer of gameplay and make sneaking around more rewarding, as people would be expecting to hear shutting doors or waiting for you to run out of bullets. You could pretty much apply the speed vs stealth interaction to most things, such as getting in or out of cars, along with looting boxes or crates.
Critique my idea thanks