//init.sqf
MY_KEYDOWN_FNC = {
switch (_this) do {

    //Key C
    case 46: {
    [] execVM "maraton.sqf";
        };
    };
};



//Ejecutar consola
waituntil {!isnull (finddisplay 46)};
(findDisplay 46) displayAddEventHandler ["KeyDown","_this select 1 call MY_KEYDOWN_FNC;false;"];

//Posibles letras
https://community.bistudio.com/wiki/DIK_KeyCodes
https://community.bistudio.com/wiki/displaySetEventHandler