I could have done a water affiliated person and I toyed with the idea at first but eventually decided against it. As for being a Terran. Ya maybe, But an nation of people with the moral values you listed for earth don't really seem like the type to keep an entire battalion of very, very Morally Questionable soldiers. If they do than that is awesome and I may consider changing.

What the Umbran story gave him was a background, A reason for him having all the skills and equipment training he has. And a reason on why he can travel by himself. If I went with Aquan or Earth. The story wouldn't really work out quite as well as the bouncing between Czars idea.