If you are not living in Europe, you can use European IP to activate the code. After activation, you can play under your own ip address.
How to activate your code:
Go to http://www.callofduty.com/bundle
(Russian page IP does not work).
Log in or create your Call of Duty account and link your Battle.net account.
Paste your code into the Activision Code field.
You will be redirected to the Battle.net page where your copy of Call of Duty Black Ops IV is activated.
Game language: multilanguage.
Region of activation: Europe (EU ip is needed only to activate the code, it is not required for the game).
Genre: Action, Shooter.
Call of Duty®: Black Ops 4 is a harsh, tough, and dynamic network game, as many as three adventures with the dead in Zombie mode, and Eclipse mode, where the Black Ops universe translates into a grand royal battle. Black Ops 4 will be the most impressive, flawless and scalable Call of Duty® for PC game ever. Waiting for you unlimited frame rate, 4K resolution, HDR, support for ultra-wide monitors and many other functions aimed at users of personal computers.
Network battles are reaching a new level: they have become as exciting as ever, but the focus has shifted to tactical decisions.
In Call of Duty: Black Ops 4 will be immediately available as many as three large stories about zombies: "IX", "Flight of Despair" and "Blood of the Dead."
Eclipse mode is a grand “royal battle” in the best traditions of Black Ops on the largest map in the history of Call of Duty.