Hello. Button to hold aim and aim by pressing. The player needs to decide for himself what type of aiming is more convenient for him.
That is, to add the ability to view from the scope of the weapon while holding down the aiming button.
Not everyone is comfortable with the current system, and not everyone uses shooting from the hip, but when the transition to the aiming mode itself takes an outraged long period of time. - Add an alternative button to the control for instant entry into the scope while holding the key.
Sorry for my rusty english.