I think crouching needs rebalancing in the game. Currently there is no reason to ever stand in the game other than to see over obstacles. Crouching reduces weapon recoil even if you're moving. You can also be just as silent and fast as someone who stands and walks silently. These make no sense.
- Crouching should reduce weapon recoil only if you're stationary. Only then you get support from your knees.
- Silent walking/Sneaking speed should be increased. You should sneak faster standing than when crouched.