I love when trailers do something different than just show cool scenes from the movie. In this case, it is actually meant to be used as propaganda for the characters in the film’s world as to why they (or their children) should join the I.F. The clip showcases the smart uniforms, the unity within a crew, fun training video games and a glimpse of the Battle Room, all the while trying to convince the viewer that they COULD be the chosen one to bring victory to the human race.