I'm a brand new player planning my first planetary invasion. I've got a few questions about it.
What happens to the (alien) population if I successfully invade? Are they eliminated, or do I become an occupying force governing an alien population?
Will I be given a choice as to what to do with the alien population?
What are the pros and cons of using Information Warfare, which apparently causes very low casualties to the alien population but is very expensive to use, vs. Biological Warfare, which apparently causes very high casualties to the alien population but is very cheap to use?
Are there any diplomatic repercussions to using any of the planetary invasion tactics, like in Master of Orion, where using biological weapons negatively affects your relationships with all other cultures?