I agree, fitness standards should be same. I have never been in military, they didn't accept me
, but my brother served as NCO in Army. He told me about exercise during which company was ordered to move in squads as quick march to another position. There was one female soldier in my brother's squad who just wasn't strong enough for the job. Rest of the squad ended up carrying her equipment in addition of their own and even after that their movement took about 45 min longer than from other squads.
My brother, squad leader, wasn't very pleased.