User blog comment:ShagaR/ME:Next's timeline. A little confused here!/@comment-7622429-20140708191051/@comment-24200891-20140708212623

I'll use the Citation about N7 again "These soldiers are the go-anywhere, fight-anything special forces of the Alliance that were trained at the Interplanetary Combatives Academy in Rio de Janeiro, Brazil. They had to survive combat situations "in an admirable and effective fashion". Sorry if it's just an interpretation. If choosing race is possible, then protagonist would work for benefit of own kind in galactic domination.