Hiya Scott,
While there are a few features that CMBO had that CMBN doesn't there is are large number of features that have been added that CMBO does not have, beyond the ones you've mentioned. As you mention, many were added when CMSF was made and others have been added specifically for CMBN. With a little time I could put together a more comprehensive list. Maybe if I mention a few others can chime in for me. Feature like the ability to play real time, recover ammo and weapons for a down soldier, the ability to re-man an abandoned vehicle, the ability for a vehicle and squad to fire at 2 different targets at once, resupplying units, ammo sharing, finer terrain definition, PBEM files now allow you have both a plot and a movie in each turn, much better indirect fire modeling, more detailed C2 system, no "borg sighting", far more flexible victory conditions, preview maps for QBs, on map field infantry guns can be used for indirect fire, passengers can fire out of open vehicles...... That is a far cry from a complete list. As I said, maybe some others will add some of the ones I haven't mentioned. Not doubt some will mention features that CMBN does not have (my pet peeve one is WeGo TCP) but that is a much smaller list and many, in balance, would not trade lost features for added features. YMMV.