When you leave the bunker with the others, there should be another cutscene where you talk with the russian general again. Does it trigger?
Anyway, nothing wrong with sending me the save files. You can send it to my e-mail: quentin11284@gmail.com
I think I found the issue. Uploading 37.5 now. Try to go through the cutscene in the bunker again. If everything goes right, you should see new cutscene play after leaving the bunker for the first time. If it still doesn't work, then please send me the save file.