Changes include
-The Trench part on the Surface level has been made a bit easier.
-The AI for the Spetsnaz has been tweaked. They are a bit more aggressive and track the player better.
Achievements not unlocking fix:
If your Achievements are not working, this was an old bug that I have been working on and now have a fix, the way to fix it is to go to your AppData/Local/Fossilfuel/Saved/SaveGames folder and delete the .sav files.