Especially after seeing eps 2, I will say, the first episode was one of the worst "first episodes" I've seen in some time. Timeskip then flashback was completely unnecessary. There was no reason to jump ahead, and literally no point in doing the series out of order, because we already see Tanya being a badass when she earns the medal.

I did like that the second eps implies a reason that Tanya is so ruthless. She knows that (except for her) the people she slaughters will be reincarnated by Being X, despite the fact that she refuses to acknowledge Being X as God.