This title update not only finally hopefully fixes the matchmaking issues but as well as the recent hacking being done. While I and other bRos have not been playing this game lately because of life, boredom, annoying matchmaking and everything else. There was not mention of having fixed host selection issues but hopefully with matchmaking that will be resolved.
At least the hacking (hopefully) will not be there. While this was not a HUGE problem with everyone being able to do it without some work, it still would of been annoying to get teamed up against them. If you would like to find out much more details, please click the source link below.
Source: CallofDuty.com Boards