A standalone patch for Battlefield Bad Company 2 has been released, updating DICE's shooter to "R9". A snippet from the changelog:

- All Weapons Bronze Insignia requiring an unobtainable bronze star for the tracer dart – requirement removed.
- Improved Hit registration made through several fixes and some of the hitboxes themselves have been changed. This will increase the accuracy of guns.
- Blue box chat window removed
- The 2 second immunity when spawning/being revived will now be immediately removed either by firing, zooming, or any movement (move, crouch, jump). A Spawning Player can still orient passively in the Game World..
- 3D vision fixed.
- Fixed slug shotgun zoom crosshair on PC so they better represent the long range accuracy. Crosshairs now close more on PC, similar to consoles.
- Reduced slug shotgun hip accuracy to require zooming for consistent long range accuracy. Hip accuracy is now on par with the semi automatic weapons.
- Fixed a bug on PC where the G3 would do less damage than intended.

The full list of changes is available on the download page for the ~900mb update, which should work from any previous version of the game.