Turn on subtitles for the cutscene with the two soldiers in Kazakhstan. It translates the soldiers dialogue into English. Lara's too. The writers have some fun and get a bit rude.
Lara: "Get down!" Russian soldier: "You are American?" Lara: "British, and it looks like we share an enemy.
[Bullet breaks a window. They all crouch.]
Lara: "Where's your command center?"
[The soldiers talk in Russian.]
1st Soldier: "Don't tell her." 2nd Soldier: "What is she doing here?" 1st Soldier: "Wait, if she uses the code without the key, the alarm will trigger and Central will send us help!" 2nd: "What are you saying?" 1st: "We're guarding snow and wolf p*** here!" You want to go yourself?"
2nd soldier to Lara, in English: "Through the gate. The code is K1879."
Lara, in Russian: "Thanks. Wish me luck."
See it here, courtesy xthemusic http://www.youtube.com/watch?v=TqV9LfJeYaI&feature=related