if you have your HW2 Big. already extracted you would put the extracted folders from either the ZIP or the RAR and put the missile, the weapon and the scripts folder into your (G:\Program Files\Sierra\Homeworld2\Data) directory and if you wish to use the nuke, then you would open a ship file, and then add the hgn_nuke as one of the weapons.
SHIVA- nuclear missile,
if you have your HW2 Big. already extracted you would put the extracted folders from either the ZIP or the RAR and put the missile, the weapon and the scripts folder into your (G:\Program Files\Sierra\Homeworld2\Data) directory and if you wish to use the nuke, then you would open a ship file, and then add the hgn_nuke as one of the weapons.