Thank you for your feedback! There are some design decisions that I would have to make to turn this prototype into a real game, you really gave me some food for thought there.
The bullets curving is actually pretty easy, there is a function in Unity that lets you move an object along its local axis (in this case the forward direction). All I have to do is slowly rotate the bullet as it is flying through the air so that its final rotation is the same as the wind's direction. I tried to avoid physics and rigidbody as much as possible.