True, I've played duel, medium and gigantic, and it does seem they go for range (at least on intelligent). The drengin crushed me on duel, almost had me but got wiped out by a fleet of Nano-Ripper ships they weren't expecting on medium, and about halfway though Gigantic I could take any free planets with ease, as I was so much faster than them. Other than that, I don't think it changes.