For whatever reason, I can't play the new maps - when the map has loaded, the screen shows the map for a second after CTD'ing without any error message. This didn't happen with the previous version. Curiously enough, old maps work just fine.
EDIT: was a bit too clever, I had ran the CMP updater after the FH2 proper update, that was the problem. Repairing the main FH2 installation from the start menu selection (and not touching the CMP updater) resolved the problem (so didn't even need to delete and reinstall).