I would avoid getting into close combat if you can with what you have there, as so many other troop types are better at it (Japanese, German SS , any engineers, or Veteran infantry of any kind, huge units of inferior troops ). You can really play to the strengths of that special rifle ability. Having been on the receiving end of that repeatedly, a sort of rolling thunder attack is alarming, as suddenly the Americans appear from around a corner at a still fairly long range yet blazing away at full strength.
