@Mike You're seeking realism - It surely isn't realistic that there is command, which teleports players out of the main world for a duel without having the consequences of cops showing up. This command shouldn't exist in a CnR server and the community agrees with it.
The current script is already perfect for players to organize their own duels since players are first grounded instead of killed instantly.
Would you this time not reject or ignore this suggestion without giving a proper explanation?