Military stance 2 is a great tool that can be used in a variety of ways..... usually in footsies and not off of a string or poke though. In footsies what you want to do is go into military stance (ten frame startup, and fairly minimal recovery and you can block out of it or dash out of it to avoid being punished for the most part. So you can go into ms and check them with ms2, since it is really fast and covers tons of ground.... once your opponent starts respecting they will be blocking and you can dash cancel out to check with a d4 and start sonyas d4 ms game, or if you are content to control the game from that range, you can dash out and go back into military stance and start the setup over again. Or you can throw a projectile, forcing them to try and duck or avoid it. If they jump at you can dash cancel and antiair, you can just block a projectile, you can jump at them if you are feeling that, or you can even throw out a kiss (yes it works to control space versus a small part of the cast). So in summary, your ms2 is your move that you use to check your opponent at long range, then once they respect it, sonya can start her other mindgames easier.