Man - where in VGA have you noticed that you can take over enemy colonists?? You always need to import your own. Exception is pirates when robbing and coercing crew to jump ship. With that in mind, the retrovirus is the best thing you could use. And I think in one of the add-on's kicking around somewhere, there is such facility.JonnyDoH wrote:It all comes down to what your goals are as an Evil Empire. Problem with a retrovirus is that you can infect the people you want to *rule*. Viruses can cause uncontrollable outbreaks. A Death Star can target a single troublemaker.
If, say, you're taxing Alderaan (moot point, the planet is bantha fodder) but want to also tax the hell out of Tantooine, you make an example of one to set the others straight and keep them in line. If Alderaan is rioting and not paying their taxes, you do a selective, surgical strike. Net result? Tantooine falls in line, and a bunch of others do too-- they don't want the hand coming around and slapping them.
If you do a retrovirus and it sweeps across Alderaan, then jumps to Tantooine, then jumps to another populated world (Never can control all the traffic going in and around the galaxy-- what with the smugglers and all), you end up killing your taxable base and ruining your entire economy (Or a segment of it, as the case may be).
If you're an evil emperor who wants to *control* the universe and keep it in line, it makes more sense to have a Death Star. If you're the evil maniacal genius that just wants to kill everyone and everything, well, the retrovirus is probably the way to go.
However, with that condition noted, your points are valid. It pays to keep the populace at a 'tension' point where you can exploit and utilise them in building your economy without tipping them over into rebellion.
Perhaps better however is forced migration - you conquer an area and send a lot of the populace to another conquered area. Result, population that is less likely to revolt. Essentially, 'assimilated' into the empire. Rationale: longterm happy population is more productive than short-term oppressed one. Nebuchadnezzar was pretty good at that.