I think Wayne makes a very valid point, in that there should be no adjustments of the standards for qualification because of the nature of the job. It is critical for the success of the units and their missions.
So if a women can pass the rigorous tests using the same standards, than I don't see why she should not be allowed to participate.
That being said I can see there being an issue with a female in a male unit. Most of our men have been raised to "never hit girls" and to have a women next to you in a dangerous and violent mission could jeopardize the safety for the simple fact that it may be a man's natural instinct to protect the female or cover for her. Instead of focusing on the objective, it may be a distraction because the natural instinct is to protect. Which is why I suggest maybe utilizing an all female unit.
For those who don't think women should be allowed in ground combat, my question would be why? Do I not have the right to fight for my country, for the freedom that our country was founded on. Can I not stand along side my father, my husband, my brother, or my son and be willing to die for what I believe in?