[Misiur]

pawn Код:

public OnPlayerCommandText(playerid, cmdtext) {
    if(!strcmp("/duty", cmdtext)) {
        if(Duty{pid}) return SendClientMessage(pid, -1, "You are on duty already man!");
            //Rest of stuff
    }
    if(!strcmp("/unduty", cmdtext)) {
        Duty{pid} = false;
            //Strip his weapons and skin
    }
}

This is not very efficient, but good enough