X-COM RU preorders have been overwritten and region locked, so avoid trading for these and contact valve support if you've activated any pre-lock to get them resolved, since their product was advertised as region free prior to purchase. I believe this is the official registry note for that at the bottom.

http://cdr.thebronasium.com/sub/16583 - ReleaseStateOverride = released.
http://cdr.thebronasium.com/sub/16582
http://cdr.thebronasium.com/sub/16376

A Blackops 2 region lock has been added to the registry, so while we'll hope that the same thing doesn't happen to existing owners or inventory gifts you should be on watch for it. I would recommend exercising caution if trading for them just until we see if RU copies get tagged after it goes live to see whether or not they'll pull this crap twice now.

http://cdr.thebronasium.com/sub/17249
http://cdr.thebronasium.com/sub/17248