1. Activate your key and download the game.
2. Download the file below, extract/copy to your main Titanfall folder.
Start/Run/Regedit (or open command prompt and type regedit)
- on 32 bit Windows; Find: [HKEY_LOCAL_MACHINE\SOFTWARE\Respawn\Titanfall],
- on 64 bit Windows; Find: [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Respawn\Titanfall] and change ru_RU to en_US
For regedit: English: en_US, German: de_DE, French: fr_FR, Italian: it_IT, Spanish: es_ES
Bypass Origin to use RU files (Do not open Origin):
Go to http://outcome.nofate.me/ . Download outcome software, patch your PAR files online and install/run Outcome.
Outcome video guide:
Login to your origin account on Outcome. You can play in English by opening the game by clicking Titanfall.exe on Windows Explorer now.