"So, all the lights in the heavens are our enemies, huh?" - a Gurren Lagann quote, but it's what pops into my head every time I see maximalist RTS AI War 2, which entered early access today, but was previously open to Kickstarter backers. Sequel to Arcen Games's cult favourite AI War, it's a solo or co-op space RTS about taking down a massively more…