Follow this guide, however replace USA with Russia where relevant. You can in theory do this with any regions market place.Your hardest part will be finding somewhere to buy Russian gift cards. PayPal used to work, however doesn't any more going from my own experience and a lot of other peoples. Some people have got lucky with credit / debit cards, again i didn't but your experience might vary. The only full proof method is Xbox Live gift cards As for buying download codes for games from Amazon i've never tried it. Codes that came with consoles in one region e.g. buy an Xbox One in the UK and get a Forza 5 download code with it, no longer work in other regions from what people have said.