NOTE: I made this on a game that includes the altered sprites from the Miranda Class (In the thread called 'Help with Importing ships'), I am not sure if it works without those altered sprite files.

//*********************************************************************************************************
Open 'tech1' (C:\Program Files\Activision\Star Trek Armada II Fleet Operations 3.0\Data\techtree) and add anywhere (preferably under the avatar entries):

fed_destruct.odf 0
kli_destruct.odf 0
rom_destruct.odf 0
dom_destruct.odf 0


//*********************************************************************************************************
Open 'freetech' (C:\Program Files\Activision\Star Trek Armada II Fleet Operations 3.0\Data\techtree) and add anywhere (preferably under the avatar entries):

fed_destruct.odf 0
kli_destruct.odf 0
rom_destruct.odf 0
dom_destruct.odf 0