Call of Duty 4 has a new patch 1.6 with a 4 new maps - Creek,Broadcast,Chinatown,Killhouse. http://www.nzone.com/object/nzone_callofduty4_downloads.html
I suspect that majority of studios still use Unreal 4 even for games that just started development and it'll take at least 3-4 years before Unreal 5 pushes out 4. Am I right?
We have some examples on the wiki fwiw Halo 4 here http://wiki.polycount.com/wiki/Modular_environments Uncharted 3 examples https://polycount.com/discussion/98332/uncharted-3-environment-art-dump-anthony-vaccaro/p1