There have been a variety of additional changes and fixes for Max Payne 3's multiplayer, that fix a number of annoying issues:
The Kill screen now shows what weapon and burst the enemy used to kill you
Fixed an issue where players would occasionally get stuck in cover
Fixed an issue where players would occasionally appear invisible
Fixed an issue where game modes could appear to be over 100% full
Fixed an issue where occasionally a Loadout slot could overwrite another Loadout slot at the start of a round of Gang Wars
Fixed an issue where a party would have trouble loading into a new game after a party member had left
They will be released on the PC, xbox 360 and PS3. Painful memories DLC has also been comfirmed for the 4th of December and will feature 4 new maps: Roscoe Street Subway, Marty's Bar, Shoot First (set on the Branco family yacht) and Canal De Panamá.