This should give you some more info if you haven't looked at it yet. The XTR is still made in the USA. The glass is supposed to be made in USA as well (that is what I was told when I talked to the techs at Burris). The new models also have what is called stormcoat. It is supposed to act like Bushnell's Rainguard. Rainguard is amazing. I am waiting to get my new 3-12 XTR.
I cannot comment on the Millet DMS. I have never seen or played with one. I can tell you I have been impressed and happy with all of my Burris scopes (Black Diamond, FFII, and soon to be XTR) and binos (Landmark II).