Is your feature request related to a problem?
Nope, I want these animations to be better.

Describe the solution you'd like.

1. The transition of objects between the hands (left and right);
2. Best sneak animation;
3. The shield (when not in use) behind the back.

Describe alternatives you've considered.

1. You can simply add an animation of swapping objects with the hands;
2. Take, for example, a sneaking animation on Hitman™;
3. When the shield in your left hand, when not in use, the character places it behind his back, or it can be done that after a certain amount of time (always after use), the character places it behind his back.

Additional context.
Hope I was helpful :)