I'm doing a bit of a mod and want to modify the Colonyship to allow it take over the function of the Troop Transport. I have added the Ability "Troops" and added Max Capacity as per the Troop Transport .ship entry.
However, in game, I can load up a colonyship and send it to an enemy colony but it will not 'invade'. It will put down a colony like normal on a new world, however.
I must have missed something in some other file, but I can not fine it.