Amazingly, after all these years, the only place you can find what he's talking about is good old, twelve years old, Falcon 4.0.
EECH has a good campaign system too. Although it suffered from the ground war not advancing like it should (tanks and stuff moving and taking territory). And while Falcon 4 has a great system - I often felt a lot of "interpolation" was going on. By that I mean, if you checked out a unit on one mission then came back and followed up later you'd see they had generated losses on their own and I don't know it was in response to any direct action by any campaign entities. Someone more familiar with the F4 campaign system could probably comment.
I've always wished for a persistent world where all the enemy and friendly forces are actually physically on the map (and virtual world) at the beginning of the campaign. A finite level of reserves could be held in warehouses (that if bombed would then be deducted from the overall inventory). EECH sort of did this with their "vehicle generator buildings", but I don't know that there were any finite limits placed on the generation of vehicles (aircraft, armor, and helos).
The other big thing I think is important to a virtual battlefield is object destruction permanence. As the war progresses, you should be able to see persistent damage to buildings, vehicles, runways, etc... Nothing improves immersion more than seeing the smoking remains of a convoy you blew up 6 hours ago or the shattered buildings that a previous flight destroyed.
I know these are wish lists..but I always enjoy this topic.