I have the latest PS3 patch, but cannot see this 'hardcore' mode. Does it affect all games, as it doesn't seem to be an option when browsing for games and in the lobby you can't tell if you are in 'hardcore' mode.
All the other fixes are obvious like ranked matches on user maps are obvious (and great), though I'm disappointed you still can't join ranked games in progress. Not only are there less games to join these days, but with all the team stacking that goes on you often end up on a team that everybody quits in the middle of the game. You have the choice of getting completely owned 8 versus 4 or quiting and losing XP. Not fun. They should either allow joining ranked matches in progress or dynamically adjust which team players are on at respawn if one side ends up with less players.