It all depends on what enviromental category you are looking at, I would have to check the mil std to see what it actually pertains to.
If you are working on a mil product but have gone down the road of doing do-160 testing which is more commercial, then the military will allow do-160...
You really should be looking at do-160D, this has captured all the req's of version C and improved upon them where required, what are you specifically looking for, I may be able to help