I was a playtester on Blitzkrieg in the West and would highly recommend it to others. But it really doesn't have a campaign feel. Each scenario depicts different forces and there is no carryover from scenario to scenario. They're not 'linked' so much as 'associated' with each other only in that the VP/VC result you get in one has the ability to alter the force composition of the next in a minor way. George's scenarios are always well designed so it's a pleasure to play each one on its merits, but there is little sense of playing a 'campaign.'
I was thinking of CG scenarios that were linked more. Where some of the same forces are used in each of the scenarios.
One version could be like one side has to a take series of objects, which each being 1+ scenarios. Defender has to determine how he will defend the objects with his units. The attacker would decide when to commit his units in taking the objectives. Each unit could be limited to a single objective, or used in taking following objects.
Another version could have a simple strategic map with connected locations. Players move their units around the map and engage in scenarios when both sides occupy the same location.
Played both versions in Starfleet Battles. Just ideas on how to expand the possibilities for CGs. If I had the attention spanned, I would do test on how they may work.