Can someone make a script that will allow the player to fire on the release of the left-click button only when using the LR? It would be greatly appreciated.

I used to play legions on IA near when it first came out, and I remember that a person could hold down the left-click button to charge the sniper rifle beam and then let it go to shoot. Is there a specific reason to why this was taken off? If you do not know what im talking about, then check...