Game was updated recently a few times.
What did they change?
Full integration of the latest version of the Advent Rising Revisited upgrade pack.
- 12 Xbox cutscenes and one movie file that were removed from the PC version.
- Fixes to common movie playback issues, such as audio desync and low frame rate.
- Edits to 83 movie files and over two hours of video content.
- Corrections to timing and various subtitling errors in all of the game's subtitles.
- Higher quality Xbox-exclusive cutscenes
- All cutscenes re-edited, with visual corrections
- 15 cutscenes new to patch v2.0
- 7 newly edited movie files
In short, no need to download addition fan patches.