That's what confuses me about this game and particularly Starship Troopers. In this game you can kinda just deduce that either the government is lying and farms the bugs to create oil-producing wars on foreign planets, or the bugs just shoot eggs or spores or something into space and by sheer luck it lands on habitable planets. In the DVD commentary of Starship Troopers though, Paul Verhoeven says that the bugs sent the meteor (???). This is directly contradicted by the movie in the very scene we learn about Buenos Aires. Unless we're supposed to believe that the bugs sent the meteor thousands of years ago somehow with the knowledge of Earth's location and orbit and also for some reason had reason and intent to destroy humanity before first contact? And then on top of that, the Federation intentionally allowed the meteor to land to generate pretext for war? This "bug imperialism" makes even less sense in Helldivers where the government doesn't even pretend or theorize that the bugs are guided by an intelligent presence such as the brain bug. They seem to be purely instinctual and driven to reproduce like every other animal species. They are extremely hostile, but only if you enter their territory and refuse to leave after they identify you and take their alert stance.