You are using right mouse to switch to scope and not using B for the Binoculars right.
If your playing in nova world mode (not lan or solo play) i dont think the game.cfg file settings would make any change as the restrictions are set by the server you join and not the local game.cfg i believe (which only effect lan or solo play)
Also you say your switching to scope but cant fire, i dont belive the issue was the game.cfg setting, as far as i know only disables the ability to zoom scopes, again depending on the server/mod its possible that some guns will have zoomable scopes and some dont.