The Battlefield blog has some details on what DICE have fixed or are planning to fix. The quick match thing will be improved (ie made any use at all), squad functionality is to be addressed, and apparently the worst of the lag issues has already been issued a fix: "Some users are experiencing lag and rubber banding, mostly tied to Conquest mode on Tehran Highway and Caspian Border. This was due to a bug in the network code that has been identified and eliminated in today’s console server patch, resulting in a big improvement in these cases. For PC, this issue was improved in an earlier server patch." I was still rubber-banding on Caspian Border at 10pm last night, so I am still a bit sceptical as to whether this has definitely been "fixed".
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