[asheshouse]

If you are using the existing ship slots and changing only the hier.him then set up your mods like this



root/MODS/WIPShipPack/3do/ships/IJNHiryuCV/hier.him

root/MODS/WIPShipPack/3do/ships/IJNKagaCV/hier.him

root/MODS/WIPShipPack/3do/ships/IJNSoryuCV/hier.him

root/MODS/WIPShipPack/3do/ships/IJNCVLGeneric/hier.him

put your new heir.him file in these folders as shown.
Now the game will use your new hier.him for the four carriers

That is all that is needed for your mod.
No new class files are required.

Ashe