And how many Christians have killed their fellow service members while on active duty?
Your stat is meaningless until you can compare it to the question above.
I guarantee you it is far less than a 14:15 killed in combat/kill fellow soldiers ratio. If our military were all Muslim it wouldn't exist.
One of those incidents killed 14, so your figures as skewed from the beginning.
And you certainly don't have all the Muslim soldiers killing other American soldiers' fatalisties, to boot.
Your figures are flawed seriously. Research.