Flak, basically, there is a camera situated a bit in front of the character’s head. A certain class (mercenary, named Specialist) has a special aim feature where when you press the aim key, it initially uses an alternate, zoomed camera, but it registers a crouch input trigger that removes the camera when you press crouch and consumes the input, to give an impression of scoping in (it adds gameplay strategy where you can focus without crouching to get better situational awareness or scope to focus on one target more precisely) with scoped weapons. Will that be enough?