POC Attachements

class cfgWeapons {
    class M16_base;
    class M4A1 : M16_base {
        scope = public;
        devolvesTo[] = {};
        hasAttached[] = {};
        canUseItems[] = {"GLT_AIM"};
        class canAttach {
            class GLT_AIM {
                evolvesTo = "M4A1_Aim";
            };
        };
    };
    class M4A1_Aim : M4A1 {
        scope = public;
        devolvesTo[] = {"M4A1"};
        hasAttached[] = {"GLT_AIM"};
        canUseItems[] = {"GLT_M203"};
        class canAttach {
            class GLT_M203 {
                evolvesTo = "M4A1_RCO_GL";
            };
        };
    };
    class M4A1_RCO_GL : M4A1 {
        scope = public;
        devolvesTo[] = {"M4A1_Aim"};
        hasAttached[] = {"GLT_M203", "GLT_AIM"};
        canUseItems[] = {};
        class canAttach {};
    };

    class ItemCore;
    class GLT_AIM : ItemCore {
        scope = public;
        displayName = "Aimpoint";
        picture = "\CA\misc\data\icons\picture_photo_folder_ca.paa";
        descriptionShort = "Aimpoint";
    };
    class GLT_M203 : ItemCore {
        scope = public;
        displayName = "M203";
        picture = "\CA\misc\data\icons\picture_photo_folder_ca.paa";
        descriptionShort = "M203";
    };
};