User blog comment:Bovell/Lots of new Battlefield 3 details via Twitter, DreamHack festival, PSM3, and interview/@comment-70.24.91.67-20110623203351/@comment-670668-20110623212021

PC has a 64 player count, which would lead us to believe we will only be seeing maps of those size on the PC. The console versions have smaller maps since they cannot maintain such high player counts (64 on PC, 24 on consoles).