Change your Unicode settings in windows to Russian before you install the game, after you have installed the game you can switch back to your regular language settings. That will ensure 100% English voice-acting and in-game text / menus.

• Take in the sights and sounds of the vast Capital Wasteland! See the great monuments of the United States lying in post-apocalyptic ruin! You make the choices that define you and change the world. Just keep an eye on your Rad Meter
  
• Vault-Tec engineers bring you the latest in human ability simulation – the SPECIAL Character System! Utilizing new breakthroughs in points-based ability representation, SPECIAL affords unlimited customization of your character. Also included are dozens of unique skills and perks to choose from, each with a dazzling variety of effects
  
• The wizards at Vault-Tec have done it again! No longer constrained to just one view, experience the world from 1st or 3rd person perspective. Customize your view with the touch of a button