Those screenshots are still not from Operation flashpoint 2, as since the split codemasters is last i heard still looking for a new developer to start work on it. All those screenshots are from what was going to be OFP2 from BIS, and is now Armed Assault. Just go to the main site if you want to see the exact same style of graphics.
http://www.armedassault.com/
As proof just look at Codemaster's site for OFP2, there are no screen shots, no nothing, just a hardly used forum.