Technically, there is little required evidence necessary to submit the application (see N400 instructions pp. 10-11). Many people when filing online upload all the evidence required to be brought to the interview, but that can be done even after the application is submitted to the best of my knowledge. When my wife filed, she used paper, and only submitted items 2 and 3 on the required list since she was not overseas, and there were no military implications. She brought all the rest to the interview where the IO ignored all of it.
Good Luck!