Eugenics itself is a discredited philosophy from the late 19th to early 20th centuries. Once you've got the ability to build and control fire, make reliable tools, and communicate with language, (IOW once your brain's big enough in the right areas) nature's pretty much done all that can be done without physically rewriting the DNA strands. iow beyond that point, you don't get improvements, you get inbreeding. for a specifically ugly example, look at Central European Royalty-the Hapsburgs. They bred in a very characteristic lower jaw line, along with Haemophilia.
or the Pharoahnic lines in Egypt, which inbred to the point of failure.
Humans, in the real world, don't domesticate real well through breeding. They DO develop superior skills through things like culture and upbringing. Take an embryo from a poverty-stricken third world nation, incubate and raise in a First World nation, and they're not going to suddenly know how to hunt with primitive tools, but the might know how to fix your computer.
What you learn and where you learn it has more to do with martial talent, than who your parents were, because (Especially with Technological societies) modern warfare is more about your education, training, self-discipline and group discipline, than about whose Zygotes you spawned from.
Neil DeGrasse Tyson's ancestors were slaves, forbidden to read, he's one of the most recognizably great astrophysicists in a generation. Nurture counts for more than Nature by a long shot, and Nicky Kerensky's criteria for his breeding programme is based on disproven Lamarckian theory anyway.