Louise knew the Septapod language because in the future she ' s fluent in it . This is a bit why they came when they did . They came now because it ' s when they needed to . They had to talk to Louise , they needed to unite humanity . Arriving at a different time wouldn ' t have the same results . <| sep |> Hey its the Marines we are here to ~~ help ~~ get killed , too ! <| sep |> It ' s a great heavy fighter that fires laser beams . But really , it ' s extremely fast , can outclimb most aircraft , has central guns that fire very fast , and can take lots if damage . If you figure out how to fly it and not get in a bind dives , bad idea . Also spiraling turn battles you can pretty much expect good results . Also , it is a great ground attacker , but an excellent high altitude fighter , play the right role depending on the team makeup .