same here...this happens in roughly 50% of the games i try to enter. some work fine. i disabled the dlc when searching for normal games. also, its almost impossible to find games. usually at this hour there are 11-13 ground war games available. now, perhaps 1-2. and if there is 2, half of them kicks me out because of "files different from server".

i have tried to verify the files again, no problem, deleted all the local files etc. etc...nothing changes...hasnt everone downloaded the patch, or is it so that the servers haven't been updated yet?

I don't have DLC yet, but I saw this error yesterday when I tried to play these new communty game modes. Standard gamemodes worked ok...

ok!

so now ive been in contact with the activision chat support and spoken with 2-3 different people there. they all seem to put the blame on steam. unfortunately steam support is a VERY timely effort, as in general a response takes at least 3 days. but ive written them as well.

the steps ive done so far myself is uninstalled the whole game and steam.

and reinstalling now, only with the patch first to see if the patch is the problem or the dlc.

if the patch works. i guess there will be a fix coming to the dlc coming at some point...

ill keep you posted.

you may also want to check out this thread at steamforums:

http://forums.steampowered.com/forums/showthread.php?t=2690591

the sound folders name is miles?

i havent disabled any sound files though...