Adding Titan missile weapon pylons

[Ex3B 267]

Has anyone succeeded in adding a titan missile pylon?

I previously was able to  change what weapon a pylon used by just changing the pylon weapon and ammo, like this:

Quote

class PylonRack_Bomb_SDB_x4

class PylonRack_Bomb_Scalpel_Clone_x4: PylonRack_Bomb_SDB_x4
{
        ammo = "M_Scalpel_AT";
        displayName = "Scalpel x4";
        displayNameShort = "Scalpel";
        descriptionShort = "Internal Scalpel AT rack";
        hardpoints[]=
        {
            "B_Scalpel_CLONE"
        };
        pylonWeapon = "missiles_SCALPEL_Clone";
            initSpeedY              = -25;
 };

But substituting the relevant Titan missile class names doesnt work.

I even tried modifying titan missile ammo properties with this,: 

proxyShape="\A3\Weapons_F_Tank\Ammo\Missile_ATGM_01_F";

 

but nothing seems to work