Before discussing the download process, it is crucial to understand why you are in this situation. Activision, the publisher of Call of Duty , uses a region-locking strategy for pricing. Games sold in Russia and Eastern Europe are often cheaper than their North American or Western European counterparts. To prevent "gray market" reselling, these copies are often hard-coded with Russian/CIS region locks, stripping out English language files.
When buying keys from resellers, always look for: Before discussing the download process, it is crucial