Gunship! by Microprose

[Apocalypse 31]

There is a new operation mode that has a series of branching scenarios sort of like the cm campaign system, but there is only a 1973 Sinai scenario for it.  I think this May be esim's effort to add more of a campaign system in the future.

Fatal flaw with the design of campaign mode: No continuity for units, losses or map damage

The campaign system is literally a way for eSim to link single missions together. Not really a true campaign.

Also, for whatever reason, the community hadn't been drawn to create new content for campaigns so we're stuck with the stock campaign and nothing else.