POC Attachements1

private ["_unit", "_attachement", "_actualWeapon", "_evolvingTo", "_type", "_muzzles"];
if ((_this select 0) != (_this select 1)) exitwith {hintsilent "Nice try, dumbass ;)"};
_unit = _this select 0;
_attachement = _this select 3;
_actualWeapon = primaryWeapon _unit;
if (!(_attachement in (weapons _unit))) exitwith {hintsilent format ["You don't have %1 in your inventory", _attachement]};
if (_attachement in (getArray (configFile >> "cfgWeapons" >> _actualWeapon >> "canUseItems"))) then {
    _evolvingTo = getText (configFile >> "cfgWeapons" >> _actualWeapon >> "canAttach" >> _attachement >> "evolvesTo");
    _unit removeWeapon _actualWeapon;
    _unit removeWeapon _attachement;
    _unit addWeapon _evolvingTo;

    if ((primaryWeapon _unit) != "") then {
        _type = primaryWeapon _unit;
        _muzzles = getArray(configFile >> "cfgWeapons" >> _type >> "muzzles");
        if (count _muzzles > 1) then {
            _unit selectWeapon (_muzzles select 0);
        } else {
            _unit selectWeapon _type;
        };
    };
} else {
    hintsilent format ["You can't use %1 on your %2", _attachement, _actualWeapon];
};