These are the killzone2 1.2 patch notes as posted by a mod on killzone.com forums
* Stability issue regarding randomly named games resolved.
* Stability fix when rapidly tapping (X) can cause crash on spawn-select.
* Stability issue regarding Saboteur’s disguise ability resolved.
* Stability fix on ‘Creating game’ with a blank name.
* Stability fix for repeatedly entering exiting game.
* The Ignore list functionality corrected.
* Unlock of “Frontrunner” Medal now functioning correctly.
* Fix for incorrect award of win to clan not showing for game resolved.
* Battle Replay for Corinth Crossing not appearing correctly on www.killzone.com.
* Issue with not being able to defuse the Search and Destroy objective resolved.
* HUD issue correction during Assassination mode when playing as a Medic.
* Controller input tweaks and modifications.
* Fix for auto-lock on of shotgun exploit.
* Fix for D-Charge issues in Campaign mode.